Bug 187213 Provid a writer to serialize design in document without any white space.
Add a new writer for serialize design in document without any withe space.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
super.visitTabularLevel( obj );
		property( obj, ITabularLevelModel.COLUMN_NAME_PROP );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitTabularMeasure(org.eclipse.birt.report.model.elements.olap.TabularMeasure)
	 */
	public void visitTabularMeasure( TabularMeasure obj )
	{
		writer.startElement( DesignSchemaConstants.TABULAR_MEASURE_TAG );
		super.visitTabularMeasure( obj );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitTabularMeasureGroup(org.eclipse.birt.report.model.elements.olap.TabularMeasureGroup)
	 */
	public void visitTabularMeasureGroup( TabularMeasureGroup obj )
	{
		writer.startElement( DesignSchemaConstants.TABULAR_MEASURE_GROUP_TAG );
		super.visitTabularMeasureGroup( obj );
		writer.endElement( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.elements.ElementVisitor#visitOdaCube(org.eclipse.birt.report.model.elements.olap.OdaCube)