Bug 279452 [Compatibility] Parameterized command mechanism support
Parameterized commands like showView need to be able to access their parameters (like the view ID) PW
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/internal/application/ApplicationPackageImpl.java
createEAttribute(mPartEClass, MPART__POLICY);
		createEReference(mPartEClass, MPART__CHILDREN);
		createEReference(mPartEClass, MPART__ACTIVE_CHILD);
		createEReference(mPartEClass, MPART__HANDLERS);
		createEAttribute(mPartEClass, MPART__WIDGET);
		createEReference(mPartEClass, MPART__PARENT);
		createEAttribute(mPartEClass, MPART__VISIBLE);
		createEAttribute(mPartEClass, MPART__CONTEXT);
		mStackEClass = createEClass(MSTACK);
		mSashFormEClass = createEClass(MSASH_FORM);
		createEAttribute(mSashFormEClass, MSASH_FORM__WEIGHTS);
		mContributedPartEClass = createEClass(MCONTRIBUTED_PART);
		mContributionEClass = createEClass(MCONTRIBUTION);
		createEAttribute(mContributionEClass, MCONTRIBUTION__URI);
		createEAttribute(mContributionEClass, MCONTRIBUTION__OBJECT);
		createEAttribute(mContributionEClass, MCONTRIBUTION__PERSISTED_STATE);
		mHandlerEClass = createEClass(MHANDLER);
		createEReference(mHandlerEClass, MHANDLER__COMMAND);
		mItemEClass = createEClass(MITEM);
		createEAttribute(mItemEClass, MITEM__ICON_URI);
		createEAttribute(mItemEClass, MITEM__NAME);
		createEAttribute(mItemEClass, MITEM__TOOLTIP);
		mHandledItemEClass = createEClass(MHANDLED_ITEM);
		createEReference(mHandledItemEClass, MHANDLED_ITEM__COMMAND);
		createEReference(mHandledItemEClass, MHANDLED_ITEM__MENU);
		mMenuItemEClass = createEClass(MMENU_ITEM);
		createEAttribute(mMenuItemEClass, MMENU_ITEM__SEPARATOR);
		createEAttribute(mMenuItemEClass, MMENU_ITEM__VISIBLE);
		mToolBarItemEClass = createEClass(MTOOL_BAR_ITEM);
		mItemContainerEClass = createEClass(MITEM_CONTAINER);