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/model/type/impl/TypePackageImpl.java
null,
				"leaderLineAttributes", null, 1, 1, PieSeries.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, !IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEAttribute( getPieSeries_LeaderLineStyle( ),
				theAttributePackage.getLeaderLineStyle( ),
				"leaderLineStyle", "Fixed_Length", 1, 1, PieSeries.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEAttribute( getPieSeries_LeaderLineLength( ),
				theAttributePackage.getPercentage( ),
				"leaderLineLength", null, 1, 1, PieSeries.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEReference( getPieSeries_SliceOutline( ),
				theAttributePackage.getColorDefinition( ),
				null,
				"sliceOutline", null, 0, 1, PieSeries.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, !IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEAttribute( getPieSeries_Ratio( ),
				theXMLTypePackage.getDouble( ),
				"ratio", "1", 1, 1, PieSeries.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEClass( scatterSeriesEClass,
				ScatterSeries.class,
				"ScatterSeries", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEClass( stockSeriesEClass,
				StockSeries.class,
				"StockSeries", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEReference( getStockSeries_Fill( ),
				theAttributePackage.getFill( ),
				null,
				"fill", null, 0, 1, StockSeries.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, !IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEReference( getStockSeries_LineAttributes( ),
				theAttributePackage.getLineAttributes( ),
				null,
				"lineAttributes", null, 0, 1, StockSeries.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, !IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEAttribute( getStockSeries_ShowAsBarStick( ),