Request an AUTOPILOT_VERSION packet

def send_capabilities_request(self, vehicle, name, m):
        '''Request an AUTOPILOT_VERSION packet'''
        capability_msg = vehicle.message_factory.command_long_encode(0, 0, mavutil.mavlink.MAV_CMD_REQUEST_AUTOPILOT_CAPABILITIES, 0, 1, 0, 0, 0, 0, 0, 0)
        vehicle.send_mavlink(capability_msg)