[DO_NOT_MERGE_YET] rotors_hil_interface: take advantage of MAVROS hil plugin#438

TSC21 wants to merge 3 commits intoethz-asl:masterethz-asl/rotors_simulator:masterfrom

TSC21:pr-hil_updateTSC21/rotors_simulator:pr-hil_updateCopy head branch name to clipboard