Fixed-wing: split out control of steering wheel into seperate message LandingGearWheel

Completely detach the steering wheel logic from the yaw controller (beside using the
same manual stick input in a manual flight mode).

Signed-off-by: Silvan Fuhrer <silvan@auterion.com>

src/modules/logger/logged_topics.cpp

@@ -75,6 +75,7 @@ void LoggedTopics::add_default_topics()
 	add_topic("input_rc", 500);
 	add_optional_topic("internal_combustion_engine_status", 10);
 	add_optional_topic("irlock_report", 1000);
+	add_topic("landing_gear_wheel", 10);
 	add_optional_topic("landing_target_pose", 1000);
 	add_optional_topic("magnetometer_bias_estimate", 200);
 	add_topic("manual_control_setpoint", 200);