and make it use matrix library for flight task compatibility

# Conflicts:
#	src/modules/mc_pos_control/mc_pos_control_main.cpp

# Conflicts:
#	src/modules/mc_pos_control/mc_pos_control_main.cpp

all the ones with mc_pos_control need the library, we should use cmake dependencies!

because upstream there needs to be a
common mavlink command definition first
and then it can be easily reenabled again

This reverts commit cf2d794d.

on vehicle rotation in yaw

FlightTasks: create enumeration type for the task index while still offering integer index with checks