User Command Check

Added user command where a user can type in to the serial the command they want, flight, land, shutdown. The command does not do anything yet.
Variable and File Change

command and node code LED variable is no longer hard coded but set to a variable which allows easy access. I also seperated the new read_write function into 2 parts where the new one is called V2. Currently the code uses the old one because the hardwares are not up to date.