Restore proper feedback (mavlink and tone) for calibration commands, etc

src/modules/commander/accelerometer_calibration.cpp

src/modules/commander/accelerometer_calibration.h

src/modules/commander/airspeed_calibration.cpp

src/modules/commander/airspeed_calibration.h

src/modules/commander/baro_calibration.cpp

src/modules/commander/baro_calibration.h

src/modules/commander/commander.cpp

src/modules/commander/gyro_calibration.cpp

src/modules/commander/gyro_calibration.h

src/modules/commander/mag_calibration.cpp

src/modules/commander/mag_calibration.h

src/modules/commander/rc_calibration.cpp

src/modules/commander/rc_calibration.h