new airframe for sih, HIL_STATE_QUATERION sent through MAVLink

boards/px4/fmu-v3/default.cmake

boards/px4/fmu-v3/rtps.cmake

boards/px4/fmu-v3/stackcheck.cmake

boards/px4/fmu-v4/default.cmake

boards/px4/fmu-v4/rtps.cmake

boards/px4/fmu-v4/stackcheck.cmake

boards/px4/fmu-v4pro/default.cmake

boards/px4/fmu-v4pro/rtps.cmake

boards/px4/fmu-v5/default.cmake

boards/px4/fmu-v5/multicopter.cmake

boards/px4/fmu-v5/rtps.cmake

boards/px4/fmu-v5/stackcheck.cmake

boards/px4/raspberrypi/cross.cmake

boards/px4/raspberrypi/native.cmake

msg/sih.msg

src/lib/systemlib/system_params.c

src/modules/mavlink/mavlink_main.cpp

src/modules/mavlink/mavlink_messages.cpp

src/modules/sih/CMakeLists.txt

src/modules/sih/sih.cpp