Bug 166015 Refactor designer actions to eclipse command framework
Eclipse command framework provide a more explicit way to manage UI actions contributions, we can take it's advantage to make our actions code more clean and maintainable.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/parts/GraphicalEditorWithFlyoutPalette.java
{
		getActionRegistry( ).registerAction( action );
		editorActionIDs.add( action.getId( ) );
	}
	/**
	 * Adds an <code>EditPart</code> action to this editor.
	 * 
	 * <p>
	 * <code>EditPart</code> actions are actions that depend and work on the
	 * selected <code>EditPart</code>s.
	 * 
	 * @param action
	 *            the <code>EditPart</code> action
	 */
	protected void addEditPartAction( SelectionAction action )
	{
		getActionRegistry( ).registerAction( action );
		editPartActionIDs.add( action.getId( ) );
	}
	/**
	 * Adds an <code>CommandStack</code> action to this editor.
	 * 
	 * <p>
	 * <code>CommandStack</code> actions are actions that depend and work on
	 * the <code>CommandStack</code>.
	 * 
	 * @param action
	 *            the <code>CommandStack</code> action
	 */
	protected void addStackAction( StackAction action )