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/ReportDesignHandle.java
* Returns the iterator over all included css style sheets. Each one is the
	 * instance of <code>IncludedCssStyleSheetHandle</code>
	 * 
	 * @return the iterator over all included css style sheets.
	 */
	public Iterator includeCssesIterator( )
	{
		PropertyHandle propHandle = getPropertyHandle( IReportDesignModel.CSSES_PROP );
		assert propHandle != null;
		return propHandle.iterator( );
	}
	/**
	 * Includes one css with the given css file name. The new css will be
	 * appended to the css list.
	 * 
	 * @param sheetHandle
	 *            css style sheet handle
	 * @throws SemanticException
	 *             if error is encountered when handling
	 *             <code>CssStyleSheet</code> structure list.
	 */
	public void addCss( CssStyleSheetHandle sheetHandle )
			throws SemanticException
	{
		CssStyleSheetHandleAdapter adapter = new CssStyleSheetHandleAdapter(
				module, getElement( ) );
		adapter.addCss( sheetHandle );
	}
	/**
	 * Includes one css with the given css file name. The new css will be