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.engine/src/org/eclipse/birt/chart/util/LiteralHelper.java
String suffix = ".displayName"; 
		return new NameSet( prefix, suffix, toStringNameArray( Position.VALUES ) );
	}
	/**
	 * @return
	 */
	private static NameSet getDateFormatDetailSet( )
	{
		String prefix = "DateFormatDetail."; 
		String suffix = ".displayName"; 
		return new NameSet( prefix,
				suffix,
				toStringNameArray( DateFormatDetail.VALUES ) );
	}
	/**
	 * @return
	 */
	private static NameSet getDateFormatTypeSet( )
	{
		String prefix = "DateFormatType."; 
		String suffix = ".displayName"; 
		return new NameSet( prefix,
				suffix,
				toStringNameArray( DateFormatType.VALUES ) );
	}
	/**
	 * @return
	 */
	private static NameSet getLegendBehaviorTypeSet( )
	{