navigator: unify timeout waiting for payload to execute mission item command

Used for winch, gripper, gimbal to reach the desired state before continuing the mission.
Ideally we'd have feedback from all these components and not just a feed-forward delay.

src/modules/navigator/navigator_main.cpp

@@ -115,14 +115,6 @@ Navigator::Navigator() :
 	_distance_sensor_mode_change_request_pub.get().request_on_off = distance_sensor_mode_change_request_s::REQUEST_OFF;
 	_distance_sensor_mode_change_request_pub.update();
 
-	// Update the timeout used in mission_block (which can't hold it's own parameters)
-	_mission.set_payload_deployment_timeout(_param_mis_payload_delivery_timeout.get());
-	_mission.set_gimbal_wait_time(_param_mis_gimbal_wait_t.get());
-
-	_adsb_conflict.set_conflict_detection_params(_param_nav_traff_a_hor_ct.get(),
-			_param_nav_traff_a_ver.get(),
-			_param_nav_traff_collision_time.get(), _param_nav_traff_avoid.get());
-
 	reset_triplets();
 }
 
@@ -150,9 +142,10 @@ void Navigator::params_update()
 		param_get(_handle_mpc_acc_hor, &_param_mpc_acc_hor);
 	}
 
-	_mission.set_payload_deployment_timeout(_param_mis_payload_delivery_timeout.get());
-	_mission.set_gimbal_wait_time(_param_mis_gimbal_wait_t.get());
-
+	_mission.set_command_timeout(_param_mis_command_tout.get());
+	_adsb_conflict.set_conflict_detection_params(_param_nav_traff_a_hor_ct.get(),
+			_param_nav_traff_a_ver.get(),
+			_param_nav_traff_collision_time.get(), _param_nav_traff_avoid.get());
 }
 
 void Navigator::run()
@@ -1270,9 +1263,7 @@ void Navigator::run_fake_traffic()
 
 void Navigator::check_traffic()
 {
-
 	if (_traffic_sub.updated()) {
-
 		_traffic_sub.copy(&_adsb_conflict._transponder_report);
 
 		uint16_t required_flags = transponder_report_s::PX4_ADSB_FLAGS_VALID_COORDS |
@@ -1291,7 +1282,6 @@ void Navigator::check_traffic()
 	}
 
 	_adsb_conflict.remove_expired_conflicts();
-
 }
 
 bool Navigator::abort_landing()