CMake: add FligthDisplay QML to custom target

This helps with other IDE's that handle CMake better than QMake

src/FlightDisplay/CMakeLists.txt

@@ -8,4 +8,25 @@ target_link_libraries(FlightDisplay
 		qgc
 )
 
+add_custom_target(FligthDisplayQml
+SOURCES
+	FlightDisplayView.qml       
+	FlightDisplayViewDummy.qml  
+	FlightDisplayViewMap.qml    
+	FlightDisplayViewUVC.qml      
+	FlightDisplayViewVideo.qml    
+	FlightDisplayViewWidgets.qml  
+	GuidedActionConfirm.qml       
+	GuidedActionList.qml         
+	GuidedActionsController.qml  
+	GuidedAltitudeSlider.qml     
+	MultiVehicleList.qml         
+	PreFlightBatteryCheck.qml        
+	PreFlightGPSCheck.qml
+	PreFlightRCCheck.qml             
+	PreFlightSensorsHealthCheck.qml  
+	PreFlightSoundCheck.qml
+	VirtualJoystick.qml
+)
+
 target_include_directories(FlightDisplay PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})