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/TypePackage.java
* <!-- end-user-doc -->
		 * @generated
		 */
		EReference PIE_SERIES__SLICE_OUTLINE = eINSTANCE.getPieSeries_SliceOutline( );
		/**
		 * The meta object literal for the '<em><b>Ratio</b></em>' attribute feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EAttribute PIE_SERIES__RATIO = eINSTANCE.getPieSeries_Ratio( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.type.impl.ScatterSeriesImpl <em>Scatter Series</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.type.impl.ScatterSeriesImpl
		 * @see org.eclipse.birt.chart.model.type.impl.TypePackageImpl#getScatterSeries()
		 * @generated
		 */
		EClass SCATTER_SERIES = eINSTANCE.getScatterSeries( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.type.impl.StockSeriesImpl <em>Stock Series</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.type.impl.StockSeriesImpl
		 * @see org.eclipse.birt.chart.model.type.impl.TypePackageImpl#getStockSeries()
		 * @generated
		 */
		EClass STOCK_SERIES = eINSTANCE.getStockSeries( );
		/**