Add Renard example transmitter as delivered by Greg
Updates to the renard transmitter to get it working.  Only tested to the coded 21 channels.
Remove the Makefile I accidentally added in this branch.  It was supposed to only be in my locally tracked branch that uses [Arduino-Makefile](https://github.com/sudar/Arduino-Makefile) as a submodule for development without the Arduino IDE.
Merge remote-tracking branch 'origin/Renard' into OTAConfig