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
EReference DIAL_SERIES__DIAL = eINSTANCE.getDialSeries_Dial( );
		/**
		 * The meta object literal for the '<em><b>Needle</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference DIAL_SERIES__NEEDLE = eINSTANCE.getDialSeries_Needle( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.type.impl.LineSeriesImpl <em>Line Series</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.type.impl.LineSeriesImpl
		 * @see org.eclipse.birt.chart.model.type.impl.TypePackageImpl#getLineSeries()
		 * @generated
		 */
		EClass LINE_SERIES = eINSTANCE.getLineSeries( );
		/**
		 * The meta object literal for the '<em><b>Marker</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference LINE_SERIES__MARKER = eINSTANCE.getLineSeries_Marker( );
		/**
		 * The meta object literal for the '<em><b>Line Attributes</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */