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.model.workbench/src/org/eclipse/e4/ui/model/application/descriptor/basic/impl/BasicPackageImpl.java
public MBasicFactory getBasicFactory() {
		return (MBasicFactory)getEFactoryInstance();
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private boolean isCreated = false;
	/**
	 * Creates the meta-model objects for the package.  This method is
	 * guarded to have no affect on any invocation but its first.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void createPackageContents() {
		if (isCreated) return;
		isCreated = true;
		
		partDescriptorEClass = createEClass(PART_DESCRIPTOR);
		createEAttribute(partDescriptorEClass, PART_DESCRIPTOR__ALLOW_MULTIPLE);
		createEAttribute(partDescriptorEClass, PART_DESCRIPTOR__CATEGORY);
		createEReference(partDescriptorEClass, PART_DESCRIPTOR__MENUS);
		createEReference(partDescriptorEClass, PART_DESCRIPTOR__TOOLBAR);
		createEAttribute(partDescriptorEClass, PART_DESCRIPTOR__CLOSEABLE);
		createEAttribute(partDescriptorEClass, PART_DESCRIPTOR__DIRTYABLE);
		createEAttribute(partDescriptorEClass, PART_DESCRIPTOR__CONTRIBUTION_URI);
		createEAttribute(partDescriptorEClass, PART_DESCRIPTOR__DESCRIPTION);
		partDescriptorContainerEClass = createEClass(PART_DESCRIPTOR_CONTAINER);