Can protocol

Implemented functions to encode/decode temperature and pressure data, changed the function to encode/decode pitotData according with the new protocol (only airvelocity is sent), created a new function to send simple can packet without passing trough and encode/decode function, sendSimpleCanPacket is useful for one of a type packet (the status packet) and the command packet. I did not feel the need to introduce the command construct in boardcore since each command type is strictly dependent with the implementation of itself, a better fit for obws.