- move controllib_test under controllib

Make the declarations of the  variables "roll_sp, pitch_sp, yaw_sp, throttle_sp," in the main loop more readable.

This allows the ground control station or any other communication partner to query the supported versions. The key aspect is to send the response in MAVLink 2 framing to test the link with a MAVLink 2 framed message.

It's obsolete since we removed the mavlink log file

The MAVLink app was logging the status to a file on the SD card, however, this has been integrated into the ulog format since. Having these in multiple locations is unnecessarily confusing to the user and induces load to the system.

- the definition of ESC_HAS_CURRENT_SENSOR is now in drv_tap_esc
- add tap_esc_common move crc table there
- header guards are applied to the header files

 - coverity fix 145492