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/writer/ModuleWriter.java
List properties = (List) obj.getLocalProperty( getModule( ),
				IOdaDataSetModel.PRIVATE_DRIVER_PROPERTIES_PROP );
		writeExtendedProperties( properties,
				IOdaDataSetModel.PRIVATE_DRIVER_PROPERTIES_PROP );
		writeOdaExtensionProperties( obj,
				IOdaExtendableElementModel.EXTENSION_ID_PROP );
		writer.endElement( );
	}
	/**
	 * Writes the columns slot of <code>GridItem</code> and
	 * <code>TableItem</code>.
	 * 
	 * @param obj
	 *            the grid item or table item
	 * @param slot
	 *            the columns slot
	 */
	private void writeColumns( DesignElement obj, int slot )
	{
		assert obj instanceof GridItem || obj instanceof TableItem;
		assert slot == IGridItemModel.COLUMN_SLOT
				|| slot == ITableItemModel.COLUMN_SLOT;
		
		
		
		boolean revert = true;
		if ( revert )
		{
			writeContents( obj, slot, null );
			return;