Bug 277676 [UI] The workbench should create the contexts
The workbench should create contexts for the model elements, MApplication and MParts (windows, sashes, contributed parts, etc). This is not really the responsibility of the renderers. PW
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ApplicationPackage.java
* @ordered
	 */
	int MPART__PARENT = MAPPLICATION_ELEMENT_FEATURE_COUNT + 7;
	/**
	 * The feature id for the '<em><b>Visible</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MPART__VISIBLE = MAPPLICATION_ELEMENT_FEATURE_COUNT + 8;
	/**
	 * The feature id for the '<em><b>Context</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MPART__CONTEXT = MAPPLICATION_ELEMENT_FEATURE_COUNT + 9;
	/**
	 * The number of structural features of the '<em>MPart</em>' class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int MPART_FEATURE_COUNT = MAPPLICATION_ELEMENT_FEATURE_COUNT + 10;
	/**
	 * The meta object id for the '{@link org.eclipse.e4.ui.model.internal.application.MStackImpl <em>MStack</em>}' class.
	 * <!-- begin-user-doc -->