create new mag_bias_estimator module

Co-authored-by: Daniel Agar <daniel@agar.ca>

src/modules/logger/logged_topics.cpp

@@ -69,6 +69,7 @@ void LoggedTopics::add_default_topics()
 	add_topic("hover_thrust_estimate", 100);
 	add_topic("input_rc", 500);
 	add_topic("internal_combustion_engine_status", 10);
+	add_topic("magnetometer_bias_estimate", 200);
 	add_topic("manual_control_setpoint", 200);
 	add_topic("manual_control_switches");
 	add_topic("mission_result");