Bug 180089 BIRT model - TOC predefined styles
In ROM we need to support predefined styles for TOC too. This will allow user to easily create a TOC style, by creating one of two styles. Suggestion i have is - TOC ( Applies to all TOC nodes ) - TOC-level1 ( If defined applies to first level toc nodes ) - TOC-level2 ........... - TOC-level5
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
* Each content in the return list is generated use
	 * <code>element.getHandle( Module )</code>
	 * 
	 * @param elementList
	 *            a list of elements.
	 * @return a list of element handles.
	 */
	private List generateHandleList( List elementList )
	{
		List handleList = new ArrayList( );
		Iterator iter = elementList.iterator( );
		while ( iter.hasNext( ) )
		{
			DesignElement element = (DesignElement) iter.next( );
			Module root = element.getRoot( );
			assert root != null;
			handleList.add( element.getHandle( root ) );
		}
		return handleList;
	}
	/**
	 * Returns the libraries this report design includes directly or indirectly.
	 * Each in the returned list is the instance of <code>LibraryHandle</code>.
	 * 
	 * @return the libraries this report design includes directly or indirectly.
	 */
	public List getAllLibraries( )
	{
		return getLibraries( IAccessControl.ARBITARY_LEVEL );
	}