[SYS] Use PicoMQTT for MQTT communication (#1954)

* Update Arduino core for selected configurations

* Use PicoMQTT for MQTT communication

environments.ini

@@ -26,7 +26,7 @@ custom_description = RF gateway for the Sonoff RF Bridge relying on the internal
 custom_hardware = RFBridge v1
 
 [env:rfbridge-direct]
-platform = espressif8266@^2
+platform = ${com.esp8266_platform}
 board = esp8285
 lib_deps =
   ${com-esp.lib_deps}
@@ -42,6 +42,7 @@ build_flags =
   '-DZsensorGPIOInput="GPIOInput"'
   '-DINPUT_GPIO=0'
   '-DGateway_Name="OMG_SRFB_Direct"'
+  '-fcommon'
 board_build.flash_mode = dout
 board_build.ldscript = eagle.flash.1m64.ld ;this frees more space for firmware uplad via OTA.
 ;extra_scripts = scripts/compressFirmware.py ;uncomment this to compress the firmware. This helps updating e.g. Sonoff RF Bridge via OTA flash by saving space for the uploaded firmware.
@@ -1459,7 +1460,7 @@ board_build.flash_mode = dout
 custom_description = KAKU RF gateway using NewRemoteSwitch library, need CC1101
 
 [env:nodemcuv2-pilight]
-platform = espressif8266@^2
+platform = ${com.esp8266_platform}
 board = nodemcuv2
 lib_deps =
   ${com-esp.lib_deps}
@@ -1470,6 +1471,7 @@ build_flags =
   ${com-esp.build_flags}
   '-DZgatewayPilight="Pilight"'
   '-DGateway_Name="OMG_ESP8266_Pilight"'
+  '-fcommon'
 board_build.flash_mode = dout
 custom_description = Gateway using ESPilight without the need of CC1101
 
@@ -1779,5 +1781,5 @@ build_flags =
   '-DLED_SEND_RECEIVE_ON=0'
   '-DGateway_Name="OMG_ESP32_BLE"'
   '-DUSE_BLUFI=1'
-  '-DARDUINO_LOOP_STACK_SIZE=15000'
+  '-DARDUINO_LOOP_STACK_SIZE=16000'
 custom_description = Regular BLE gateway based on esp-idf with adaptive scanning activated, automatically adapts the scan parameters depending on your devices