- only FW currently, rotorcraft coming soon
- compared to before:
- no macros (easier to debug)
- the default channel/device cannot be set for all the messages at the
same time (it will be possible when we finally replace messages
macros and define proper C struct for that)
- the register function only register for a single process (not
possible to reuse the function for an other process unless you
explicitely register for it)