Create radio data transmission protocol

[explosion33]

A protocol needs to be designed to efficiently transmit radio data back to the ground station, as well as be able to receive and execute ground station commands

SHOULD INCLUDE:

• Some form of confirmation that messages have been received, and the ability to recover when they aren't
• efficient encoding
  • something like JSON would not be suitable
• Constant data transmission
• asynchronous transmissions
• Messages from the ground station should take priority

TODO:

• Design protocol capable of having all required features with minimal space
• Implement encoding and decoding functions of protocol into a usable form
• Write and test data transmission