We use the real defines now and test them against every mixer on the system. This means we should catch transfer errors now before even hitting master.

This is necessary to allow more and better unit testing.

This introduces a correctly designed pre-check for the input parsers. This fixes the mixer unit test and should fix all issues occuring on real hardware.
;

Fixes https://github.com/PX4/Firmware/issues/6246

added line at the end

This is needed as the sensors app assumes a value of 0 means uninitialized.

Follow-up to 'Sensors app: Fix consistency checks', a6696d33

This was a real issue for long paths and not a flight safety issue for regular users, but could have been an issue for developers trying to use FTP on very deep nested file systems

Due to known input this was not a real issue, but bad style.

This was harmless but none the less is not good style and needs fixing.

Sadly, we cannot use std::array on NuttX

It causes problems because it includes px4_nodehandle.h which in turn
includes <functional>, and this is not available on NuttX