active

isn't duplicated

mc_pos_control

structure (flight task refactor)

interface

During startup retry commands several times before exiting.
Report if the startup was successful or failed.

- the uorb behavior got recently changed so that we now need to clear
  any potential existing messages when we start log streaming.
- ulog_stream_ack should also not use a queue, since the ack is done
  synchonous between mavlink and the logger.

Otherwise these files are added to the NuttX ROMFS build.

Move ros logs dir so that .ulg files are not in the same directory
(mission_test.py:: get_last_log() fails otherwise)

This is to not lose any existing functionality until we have everything
unified.

Also ignore the warning:
error: calling 'system' uses a command processor [cert-env33-c,-warnings-as-errors]

Ensures that clients will get the output of the listener.

By reading sizeof(packet), it could have happened that 2 packets at once
were read, and the second one was then ignored.
This makes sure that only one packet at a time is read.

The other 2 changes are for efficiency.