images: Added few more images and updated corresponding header files

Signed-off-by: sisinty sasmita patra <sisinty.s.patra@intel.com>

src/grove/grove.h

@@ -60,6 +60,7 @@ class Grove {
  * @ingroup grove gpio
  * @snippet groveled.cxx Interesting
  * @snippet groveled-multi.cxx Interesting
+ * @image html groveled.jpg
  */
 class GroveLed: public Grove {
     public:
@@ -111,6 +112,7 @@ class GroveLed: public Grove {
  *
  * @ingroup grove gpio
  * @snippet groverelay.cxx Interesting
+ * @image html groverelay.jpg
  */
 class GroveRelay: public Grove {
     public:
@@ -161,6 +163,7 @@ class GroveRelay: public Grove {
  *
  * @ingroup grove analog
  * @snippet grovetemp.cxx Interesting
+ * @image html grovetemp.jpg
  */
 class GroveTemp: public Grove {
     public:
@@ -201,6 +204,7 @@ class GroveTemp: public Grove {
  *
  * @ingroup grove analog
  * @snippet grovelight.cxx Interesting
+ * @image html grovelight.jpg
  */
 class GroveLight: public Grove {
     public:
@@ -348,6 +352,7 @@ class GroveSlide: public Grove {
  *
  * @ingroup grove gpio
  * @snippet grovebutton.cxx Interesting
+ * @image html grovebutton.jpg
  */
 class GroveButton: public Grove {
     public:

src/grove/grovebutton.h

@@ -36,6 +36,6 @@
  * @brief API for Grove Button
  *
  * Very basic UPM module for Grove button
- *
+ * @image html grovebutton.jpg
  * @snippet grovebutton.cxx Interesting
- */
+ */

src/grove/groveled.h

@@ -41,7 +41,8 @@
  * negative seat (cathode).  The flat side of the bulb corresponds
  * to the cathode while the rounded side corresponds to the anode.
  *
+ * @image html groveled.h
  * @snippet groveled.cxx Interesting
  * @snippet groveled-multi.cxx Interesting
  */
- 
+ 

src/grove/grovelight.h

@@ -40,6 +40,7 @@
  * analog pin will be larger in bright light and smaller in the dark.
  * An approximate lux value can also be returned.
  *
+ * @image html grovelight.jpg
  * @snippet grovelight.cxx Interesting
  */
- 
+ 

src/grove/groverelay.h

@@ -39,6 +39,7 @@
  * control a higher voltage and/or higher current.  When closed, 
  * the indicator LED will light up and current is allowed to flow.
  *
+ * @image html groverelay.jpg
  * @snippet groverelay.cxx Interesting
  */
- 
+ 

src/grove/grovetemp.h

@@ -36,6 +36,7 @@
  *
  * Very basic UPM module for Grove temperature sensor on analog
  *
+ * @image html grovetemp.h
  * @snippet grovetemp.cxx Interesting
  */
- 
+