LandDetector:

- constructor initalization fix
- set trigger time for ground contact hysteresis
- updated ground_contact_state logic
MulticopterLandDetector:
- added hysteresis for ground_contact
VtolLandDetector:
- get_ground_contact_state function that return the one form MultcopterLandDetector
FixedWingLandDetector:
- get_ground_contact_state with a return false: requires implementation

src/modules/land_detector/FixedwingLandDetector.cpp

@@ -97,6 +97,11 @@ bool FixedwingLandDetector::_get_freefall_state()
 	// TODO
 	return false;
 }
+bool FixedwingLandDetector::_get_ground_contact_state(){
+
+	// TODO
+	return false;
+}
 
 bool FixedwingLandDetector::_get_landed_state()
 {