Compile and runtime fixes when running in Debug

Do not crash if ScreenSpaceLocalImage does not exist
Add ability to specify identifier/name when adding screenspace items in the UI

src/engine/openspaceengine.cpp

@@ -811,7 +811,6 @@ void OpenSpaceEngine::deinitialize() {
 
     ghoul::logging::LogManager::deinitialize();
 
-    ghoul::deinitialize();
     LTRACE("deinitialize(end)");