Merge branch 'develop'

* develop:
  Sync-up with iot-core 1.5.5
  Sync-up with iot-core 1.5.4 (#502)
  Sync-up with iot-core 1.5.4
  caps_sample:update sample file in apps
  cpas_sample:update caps sample to include "external/JSON.h"
  patch: remove patch for emw3xxx config
  modify style of READEME.md of ota_demo
  update ota_demo sdkconfig for esp32 v4.x
  update ota_demo app to apply new code for OTA_DEMO
  Add light_example for rtl8720c and update README.md Add CONFIG_STDK_IOT_CORE_EASYSETUP_HTTP_USE_SOCKET_API configuration
  Add emw3080 light & swtich example Readme documents
  Fix change_switch_state issue
  Update README for rtl8195 Switch example

 	|Conflicts:
	|	iot-core : Sync with latest iot-core

Author: stdk-scm

apps/capability_sample/caps_button.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_button.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_colorControl.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_colorControl.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_dishwasherOperatingState.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_dishwasherOperatingState.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_dryerOperatingState.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_dryerOperatingState.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_execute.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_execute.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_gasMeter.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_gasMeter.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_mediaInputSource.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_mediaInputSource.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_mediaPlayback.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_mediaPlayback.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_objectDetection.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_objectDetection.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {

apps/capability_sample/caps_ovenOperatingState.h

@@ -17,7 +17,7 @@
  ****************************************************************************/
 
 #include "caps/iot_caps_helper_ovenOperatingState.h"
-#include "JSON.h"
+#include "external/JSON.h"
 
 #ifdef __cplusplus
 extern "C" {