images: added more images and modified respective header files

Signed-off-by: Sisinty Sasmita Patra <sisinty.s.patra@intel.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/a110x/a110x.h

    * perpendicular to the sensor element.
    *
    * An example showing a simple test for the presence of a field
+   *
+   * @image html a110x.jpg
    * @snippet a110x.cxx Interesting
    * An example demonstrating the use of an interrupt handler to count pulses
    * @snippet a110x-intr.cxx Interesting

src/adafruitms1438/adafruitms1438.h

    * An example using a DC motor conected to M3
    * @snippet adafruitms1438.cxx Interesting
    * An example using a stepper motor connected to M1 & M2
+   *
+   * @image html adafruitms1438.jpg 
    * @snippet adafruitms1438-stepper.cxx Interesting
    */
   class AdafruitMS1438 {

src/adafruitss/adafruitss.h

   * capacitor be installed on the board which should alleviate the issue.
   * Sizing depends on servos and count.
   *
+  * @image html adafruitss.jpg 
   * @snippet adafruitss.cxx Interesting
   */
   class adafruitss {

src/adc121c021/adc121c021.h

    * By providing a constant reference voltage, this sensor helps
    * to increase the accuracy of a value collected from an analog sensor.
    *
+   * @image html adc121c021.jpg
    * @snippet adc121c021.cxx Interesting
    */
   class ADC121C021 {

src/biss0001/biss0001.h

    *
    * UPM module for the BISS0001 Motion Sensor
    *
+   * @image html biss0001.jpg
    * @snippet biss0001.cxx Interesting
    */
   class BISS0001 {

src/buzzer/buzzer.h

  * sound using a piezoelectric material that vibrates at different
  * frequencies based on the input voltage.
  *
+ * @image html buzzer.jpg
  * @snippet buzzer-sound.cxx Interesting
  */
 class Buzzer {

src/cjq4435/cjq4435.h

    * Please note, that the available periods will vary depending on
    * the capabilities of your device.
    *
+   * @image html cjq4435.jpg
    * @snippet cjq4435.cxx Interesting
    */
   class CJQ4435 {

src/ds1307/ds1307.h

    * This device can also output a square wave at 1Khz, 4Khz, 8Khz, and 32Khz.
    * However, this capability is not implemented in this module.
    *
+   * @image html ds1307.jpg
    * @snippet ds1307.cxx Interesting
    */
   class DS1307 {

src/enc03r/enc03r.h

    * how fast the sensor is rotating around the x-axis.
    * Calibration of the sensor is necessary for accurate readings.
    *
+   * @image html enc03r.jpg 
    * @snippet enc03r.cxx Interesting
    */
   class ENC03R {

src/flex/flex.h

    * bent. Patented technology by Spectra Symbol, these sensors were used in
    * the original Nintendo Power Glove.
    *
+   * @image html flex.jpg
    * @snippet flex.cxx Interesting
    */
   class Flex {

src/gp2y0a/gp2y0a.h

    * are far away; the voltage increases as objects get closer
    * to the sensor.  
    *
+   * @image html gp2y0a.h
    * @snippet gp2y0a.cxx Interesting
    */
   class GP2Y0A {

src/grovecollision/grovecollision.h

    * collision movement or vibration happens.
    * It will output a low pulse signal when vibration is detected. 
    *
+   * @image html grovecollision.jpg
    * @snippet grovecollision.cxx Interesting
    */
   class GroveCollision {

src/groveehr/groveehr.h

    * UPM module for the GroveEHR sensor.  It is used to measure your
    * heartbeat. 
    *
+   * @image html groveehr.jpg 
    * @snippet groveehr.cxx Interesting
    */
   class GroveEHR {

src/groveeldriver/groveeldriver.h

    * The Grove EL Driver allows you to easily light up an
    * EL Wire with just one single Grove cable.
    *
+   * @image html groveeldriver.jpg 
    * @snippet groveeldriver.cxx Interesting
    */
   class GroveElDriver {

src/groveelectromagnet/groveelectromagnet.h

    * 
    * The Grove Electromagnet can hold up to 1 KG (approximately 2.2 lbs)
    *
+   * @image html groveelectromagnet.jpg
    * @snippet groveelectromagnet.cxx Interesting
    */
   class GroveElectromagnet {

src/groveemg/groveemg.h

    * GroveEMG Muscle Signal reader gathers small muscle signals,
    * then processes and returns the result
    *
+   * @image html groveemg.jpg 
    * @snippet groveemg.cxx Interesting
    */
   class GroveEMG {

src/grovegsr/grovegsr.h

    * In other words, it measures sweat on your fingers
    * as an indicator of strong emotional reactions.
    *
+   * @image html grovegsr.jpg
    * @snippet grovegsr.cxx Interesting
    */
   class GroveGSR {

src/grovelinefinder/grovelinefinder.h

    * digital signal indicating whether it is detecting black on a
    * white background, or white on a black background.
    *
+   * @image html grovelinefinder.jpg
    * @snippet grovelinefinder.cxx Interesting
    */
   class GroveLineFinder {

src/groveloudness/groveloudness.h

    * detects how loud the surrounding environment is.
    * The higher the output analog value, the louder the sound.
    *
+   * @image html groveloudness.jpg
    * @snippet groveloudness.cxx Interesting
    */
   class GroveLoudness {

src/grovemoisture/grovemoisture.h

    * Note that this sensor is not designed to be left in soil
    * nor to be used outdoors.
    *
+   * @image html grovemoisture.jpg
    * @snippet grovemoisture.cxx Interesting
    */
   class GroveMoisture {

src/groveo2/groveo2.h

    *
    * The Grove O2 sensor measures the oxygen concentration in the air
    *
+   * @image html groveo2.jpg    
    * @snippet groveo2.cxx Interesting
    */
   class GroveO2 {

src/grovespeaker/grovespeaker.h

    * UPM module for the GroveSpeaker.
    * This sensor can generate different tones and sounds depending on the
    * frequency of the input signal.
-   *
+   * 
+   * @image html grovespeaker.jpg 
    * @snippet grovespeaker.cxx Interesting
    */
   class GroveSpeaker {

src/grovevdiv/grovevdiv.h

    *
    * UPM module for the Grove Voltage Divider Sensor
    *
+   * @image html grovevdiv.jpg
    * @snippet grovevdiv.cxx Interesting
    */
   class GroveVDiv {

src/grovewater/grovewater.h

    *
    * UPM module for the Grove Water Sensor
    *
+   * @image html grovewater.jpg
    * @snippet grovewater.cxx Interesting
    */
   class GroveWater {

src/grovewfs/grovewfs.h

    * (yellow) to Vcc (red) should not be there.  The sensor may work
    * with this connection, but probably not for very long.
    *
-   *
+   * @image html grovewfs.jpg
    * @snippet grovewfs.cxx Interesting
    */
   class GroveWFS {

src/hm11/hm11.h

      * http://www.seeedstudio.com/wiki/images/c/cd/Bluetooth4_en.pdf
      *
      * It is connected via a UART at 9600 baud.
-     * 
+     *
+     * @image html hm11.jpg 
      * @snippet hm11.cxx Interesting
      */
 

src/hmtrp/hmtrp.h

  * presented on it's UART interface.  It can be placed into a
  * configuration mode by grounding the CONFIG pin on the module.
  *
+ * @image html hmtrp.jpg
  * @snippet hmtrp.cxx Interesting
  */
   class HMTRP {

src/ina132/ina132.h

    * 
    * This sensor was tested amplifying the signal
    * from a Weight Sensor (Load Cell)0-500g
-   *
+   * 
+   * @image html ina132.jpg 
    * @snippet ina132.cxx Interesting
    */
   class INA132 {

src/isd1820/isd1820.h

      * are two digital pins, one that enables recording, and the other
      * that plays back what was previously recorded.
      *
+     * @image html isd1820.jpg
      * @snippet isd1820.cxx Interesting
      */
   class ISD1820 {

src/joystick12/joystick12.h

  * button could be treated as normal GPIO, this enables easier
  * interrupt support
  *
+ * @image html joystick12.h
  * @snippet joystick12-example.cxx Interesting
  */
 class Joystick12 {

src/ldt0028/ldt0028.h

  *
  * This file defines the LDT0028 C++ interface for libupm-ldt0028
  *
+ * @image html ldt0028.jpg
  * @snippet ldt0028.cxx Interesting
  */
 class LDT0028 {

src/lpd8806/lpd8806.h

  *
  * The FastPixel lpd8806 is an RGB led strip controller.
  *
+ * @image html lpd8806.jpg
  * @snippet lpd8806.cxx Interesting
  */
 class LPD8806 {

src/max31855/max31855.h

  * (http://datasheets.maximintegrated.com/en/ds/MAX31855PMB1.pdf) from the
  * analog PMOD kit.
  *
+ * @image html max31855.jpg
  * @snippet max31855.cxx Interesting
  */
 class MAX31855 {

src/mhz16/mhz16.h

      * It's CO2 detection ranges from 0PPM to 2000PPM.  It requires a
      * 2-3 minute warm up time before reporting valid data.
      * 
+     * @image html mhz16.jpg
      * @snippet mhz16.cxx Interesting
      */
   class MHZ16 {

src/mlx90614/mlx90614.h

  *
  * This file defines the MLX90614 C++ interface for libmlx90614
  *
+ * @image html mlx90614.jpg
  * @snippet mlx90614.cxx Interesting
  */
 class MLX90614 {

src/mma7455/mma7455.h

  *
  * This file defines the MMA7455 C++ interface for libmma7455
  *
+ * @image html mma7455.jpg
  * @snippet mma7455.cxx Interesting
  */
 class MMA7455 {

src/mma7660/mma7660.h

    * This module was tested with the Grove 3-Axis Digital
    * Accelerometer (1.5g)
    *
+   * @image html mma7660.jpg
    * @snippet mma7660.cxx Interesting
    */
   class MMA7660 {

src/mpl3115a2/mpl3115a2.h

  * is a high precision, ultra-low power consumption pressure sensor. It has a
  * range of between 50 and 110 kPa.
  *
+ * @image html mpl3115a2.jpg
  * @snippet mpl3115a2.cxx Interesting
  */
 class MPL3115A2 {

src/nunchuck/nunchuck.h

    * should be on the same side as the grove interface socket on the
    * adapter.
    *
+   * @image html nunchuck.jpg
    * @snippet nunchuck.cxx Interesting
    */
   class NUNCHUCK {

src/otp538u/otp538u.h

    * These tables assume the object to be measured is 9cm (3.54
    * inches) from the sensor.
    *
+   * @image html otp538u.jpg
    * @snippet otp538u.cxx Interesting
    */
   class OTP538U {

src/si114x/si114x.h

    * in the future to support additional capabilities, including
    * interrupt support.
    *
+   * @image html si114x.jpg
    * @snippet si114x.cxx Interesting
    */
   class SI114X {

src/st7735/st7735.h

  * 
  *   This file defines the C++ interface for ST7735 display library
  *
+ * @image html st7735.jpg
  * @snippet st7735.cxx Interesting
  */
 class ST7735 : public GFX {

src/stepmotor/stepmotor.h

  * 
  *   This file defines the stepmotor C++ interface
  *
+ * @image html stepmotor.jpg
  * @snippet stepmotor.cxx Interesting
  */
 class StepMotor {

src/sx6119/sx6119.h

      * two digital pins, one that toggles power on/off, and one that
      * does a seek to the next station.
      *
+     * @image html sx6119.jpg
      * @snippet sx6119.cxx Interesting
      */
   class SX6119 {

src/ta12200/ta12200.h

  *   This module can measure AC current moving through a wire at up 
  *   to 5A.
  *
+ * @image html ta12200.jpg
  * @snippet ta12200.cxx Interesting
  */
   class TA12200 {

src/tcs3414cs/tcs3414cs.h

  * 
  *   This file defines the TCS3414CS C++ interface for the color sensor
  *
+ * @image html tcs3414cs.jpg
  * @snippet tcs3414cs.cxx Interesting
  */
 class TCS3414CS {

src/th02/th02.h

  * 
  *   This file defines the TH02 C++ interface for libth02
  *
+ * @image html th02.jpg
  * @snippet th02.cxx Interesting
  */
 class TH02 {

src/tsl2561/tsl2561.h

  *   The TSL2560 and TSL2561 are light-to-digital converters that transform
  *   light intensity to a digital signal output capable of direct I2C (TSL2561)
  *
- * @image html grovetsl2561.jpeg
+ * @image html tsl2561.jpg
  * @snippet tsl2561.cxx Interesting
  */
 class TSL2561{

src/ttp223/ttp223.h

  *   button.  The touch sensor can still function when placed under a 
  *   non-metallic surface like glass or plastic.
  *
+ * @image html ttp223.jpg
  * @snippet ttp223.cxx Interesting
  */
 class TTP223 {

src/ublox6/ublox6.h

      * 
      *   UPM support for the U-BLOX 6 GPS Module
      *
+     * @image html ublox6.jpg
      * @snippet ublox6.cxx Interesting
      */
   class Ublox6 {

src/uln200xa/uln200xa.h

    * use in driving a unipolar stepper motor, the 28BYJ-48.
    *
    * Example driving a stepper motor
+   *
+   * @image html uln200xa.jpg
    * @snippet uln200xa.cxx Interesting
    */
 

src/waterlevel/waterlevel.h

    * @con gpio
    * 
    * @brief UPM module for the Grove Luminance Sensor
-   * 
+   *
+   * @image html waterlevel.jpg 
    * @snippet apds9002.cxx Interesting
    */  class WaterLevel {
   public:

src/wt5001/wt5001.h

      *   UPM support for the WT5001 Serial MP3 Module.  This was tested
      *   specifically with the Grove Serial MP3 module.
      *
+     * @image html wt5001.jpg
      * @snippet wt5001.cxx Interesting
      */
   class WT5001 {

src/yg1006/yg1006.h

      *   UPM module for the YG1006 flame sensor.  It detects flame or any
      *   other light in the 760nm - 1100nm wavelength range.
      *
+     * @image html yg1006.jpg
      * @snippet yg1006.cxx Interesting
      */
   class YG1006 {

src/zfm20/zfm20.h

      * This example demonstrates how to register and store a new fingerprint
      * @snippet zfm20-register.cxx Interesting
      * This example demonstrates reading a fingerprint and locating it in the DB
+     *
+     * @image html zfm20.jpg
+     *
      * @snippet zfm20.cxx Interesting
      */
   class ZFM20 {