Vehicle.h: public getter for vehicle compid

src/Vehicle/Vehicle.h

@@ -482,6 +482,7 @@ public:
 
     // Property accesors
     int id() const{ return _id; }
+    int compId() const{ return _compID; }
     MAV_AUTOPILOT firmwareType() const { return _firmwareType; }
     MAV_TYPE vehicleType() const { return _vehicleType; }
     QGCMAVLink::VehicleClass_t vehicleClass(void) const { return QGCMAVLink::vehicleClass(_vehicleType); }