Bug 331010 Track Model-Element contributors
We need to track which bundle contributed an model element to e.g. look up translations in the right package
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/internal/workbench/ModelAssembler.java
@Inject
	private Logger logger;
	@Inject
	private MApplication application;
	@Inject
	private IEclipseContext context;
	final private static String extensionPointID = "org.eclipse.e4.workbench.model"; 
	/**
	 * Process the model
	 */
	public void processModel() {
		IExtensionRegistry registry = RegistryFactory.getRegistry();
		IExtensionPoint extPoint = registry.getExtensionPoint(extensionPointID);
		IExtension[] extensions = topoSort(extPoint.getExtensions());
		List<MApplicationElement> imports = new ArrayList<MApplicationElement>();
		List<MApplicationElement> addedElements = new ArrayList<MApplicationElement>();