Bug 117149 Add additional datapoint markers
I would like to propose adding additional datapoint markers. Attached is a set of markers I would like supported.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/type/AreaChart.java
zAxisAncillary.setTitlePosition( Position.BELOW_LITERAL );
			zAxisAncillary.getTitle( )
					.getCaption( )
					.setValue( Messages.getString( "ChartWithAxesImpl.Z_Axis.title" ) ); 
			zAxisAncillary.getTitle( ).setVisible( true );
			zAxisAncillary.setPrimaryAxis( true );
			zAxisAncillary.setLabelPosition( Position.BELOW_LITERAL );
			zAxisAncillary.setOrientation( Orientation.HORIZONTAL_LITERAL );
			zAxisAncillary.getOrigin( ).setType( IntersectionType.MIN_LITERAL );
			zAxisAncillary.getOrigin( )
					.setValue( NumberDataElementImpl.create( 0 ) );
			zAxisAncillary.getTitle( ).setVisible( false );
			zAxisAncillary.setType( AxisType.TEXT_LITERAL );
			( (ChartWithAxes) currentChart ).getPrimaryBaseAxes( )[0].getAncillaryAxes( )
					.add( zAxisAncillary );
			SeriesDefinition sdZ = SeriesDefinitionImpl.create( );
			sdZ.getSeriesPalette( ).update( 0 );
			sdZ.getSeries( ).add( SeriesImpl.create( ) );
			zAxisAncillary.getSeriesDefinitions( ).add( sdZ );
			if ( currentChart.getSampleData( )
					.getAncillarySampleData( )
					.isEmpty( ) )
			{
				BaseSampleData sdAncillary = DataFactory.eINSTANCE.createBaseSampleData( );
				sdAncillary.setDataSetRepresentation( "Series 1" ); 
				currentChart.getSampleData( )
						.getAncillarySampleData( )
						.add( sdAncillary );
			}
		}