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/LineChart.java
{
				return null;
			}
			currentChart.getLegend( )
					.setItemType( LegendItemType.SERIES_LITERAL );
			currentChart.getTitle( )
					.getLabel( )
					.getCaption( )
					.setValue( CHART_TITLE );
		}
		if ( currentChart instanceof ChartWithAxes
				&& !( (ChartWithAxes) currentChart ).getOrientation( )
						.equals( newOrientation ) )
		{
			( (ChartWithAxes) currentChart ).setOrientation( newOrientation );
		}
		if ( !currentChart.getDimension( )
				.equals( getDimensionFor( sNewDimension ) ) )
		{
			currentChart.setDimension( getDimensionFor( sNewDimension ) );
		}
		if ( sNewDimension.equals( THREE_DIMENSION_TYPE )
				&& getDimensionFor( sNewDimension ) != oldDimension )
		{
			( (ChartWithAxes) currentChart ).setRotation( Rotation3DImpl.create( new Angle3D[]{
				Angle3DImpl.create( -20, 45, 0 )
			} ) );
			( (ChartWithAxes) currentChart ).setUnitSpacing( 50 );
			( (ChartWithAxes) currentChart ).getPrimaryBaseAxes( )[0].getAncillaryAxes( )
					.clear( );