Airspeed Selector: repurpose wind estimator into an airspeed (selection, validation) module.

This new airspeed module does:
  -runns an airspeed validator for every airspeed sensor present, which checks measurement validity and estimates an airspeed scale
  -selects another airspeed sensor if for the current one a failure is detected
  -estimates airspeed with groundspeed-windspeed if no valid airspeed sensor is present
  -outputs airspeed_validated topic

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

src/modules/logger/logger.cpp

@@ -511,6 +511,7 @@ void Logger::add_default_topics()
 	add_topic("actuator_controls_0", 100);
 	add_topic("actuator_controls_1", 100);
 	add_topic("airspeed", 200);
+	add_topic("airspeed_validated", 200);
 	add_topic("camera_capture");
 	add_topic("camera_trigger");
 	add_topic("camera_trigger_secondary");