Bug 188578 Add "displayColumnName" on TabularLevel
Add Property "displayColumnName" on TabbularLevel and corresponding APIs on handle. Property Type: expression.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
property( obj, IStyleModel.TEXT_UNDERLINE_PROP );
		
		property( obj, IStyleModel.BORDER_BOTTOM_COLOR_PROP );
		property( obj, IStyleModel.BORDER_BOTTOM_STYLE_PROP );
		property( obj, IStyleModel.BORDER_BOTTOM_WIDTH_PROP );
		property( obj, IStyleModel.BORDER_LEFT_COLOR_PROP );
		property( obj, IStyleModel.BORDER_LEFT_STYLE_PROP );
		property( obj, IStyleModel.BORDER_LEFT_WIDTH_PROP );
		property( obj, IStyleModel.BORDER_RIGHT_COLOR_PROP );
		property( obj, IStyleModel.BORDER_RIGHT_STYLE_PROP );
		property( obj, IStyleModel.BORDER_RIGHT_WIDTH_PROP );
		property( obj, IStyleModel.BORDER_TOP_COLOR_PROP );
		property( obj, IStyleModel.BORDER_TOP_STYLE_PROP );
		property( obj, IStyleModel.BORDER_TOP_WIDTH_PROP );
		
		property( obj, IStyleModel.MARGIN_TOP_PROP );
		property( obj, IStyleModel.MARGIN_LEFT_PROP );
		property( obj, IStyleModel.MARGIN_BOTTOM_PROP );
		property( obj, IStyleModel.MARGIN_RIGHT_PROP );
		
		property( obj, IStyleModel.PADDING_TOP_PROP );
		property( obj, IStyleModel.PADDING_LEFT_PROP );
		property( obj, IStyleModel.PADDING_BOTTOM_PROP );
		property( obj, IStyleModel.PADDING_RIGHT_PROP );
		
		property( obj, IStyleModel.NUMBER_ALIGN_PROP );
		writeStructure( obj, IStyleModel.DATE_TIME_FORMAT_PROP );
		writeStructure( obj, IStyleModel.DATE_FORMAT_PROP );
		writeStructure( obj, IStyleModel.TIME_FORMAT_PROP );
		writeStructure( obj, IStyleModel.NUMBER_FORMAT_PROP );