* added vehicle command and support to remotely activate/deactivate the safety system (#26078)
* added print_status support for prearm safety status
* updated safety button to map to MAV_CMD_DO_SET_SAFETY_SWITCH_STATE = '5300'
* safety switch cmd: fixed incorrect catch-all and added commanded_state variable for easier reading
When operating fully autonomously (i.e., without manual control or a guaranteed link to the ground station), tuning a vehicle can be difficult since the current autotune process requires either RC input or a GCS command. For these scenarios, it it useful to be able to start autotune inside a mission.
