Implemented Serial Flasher (uses YMODEM protocol)
Code cleanup, abililty to use Serial/Serial1/Serial2 for firmware update
Updated serial ymodem code to save files on sFlash using address param
Added new System class methods: serialSaveFile and serialFirmwareUpdate
Added new option "f" for serial ymodem protocol based firmware upgrade
Reset to default tinker app (Pull latest common and communication libs)
Handle RGB_COLOR_MAGENTA during Flash Update using RGB.control overide
Bug fix to set RGB.overide to false when OTA Flash update fails
Updated code after merging in latest master - Fixed merge conflict
Merged conflict fixes after merging in feature/flasher_additions