Document radio.js using radio.md
Change smart sensor -> smart device in documentation.
Update smartdevice.txt to use 2x5 header.
New radio protocol YAML file copied from Daemon
Clean up unused printf handling radio code
Change setGameMode to a public function
Functions to support trasmitting on the rest of the radio ports
Initial code for radio config thread and device enumeration
Controller game state control also over config port
Shrink radio config thread stack size