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/attribute/AttributePackage.java
* The meta object literal for the '{@link org.eclipse.birt.chart.model.attribute.GroupingUnitType <em>Grouping Unit Type</em>}' enum.
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		 * @see org.eclipse.birt.chart.model.attribute.GroupingUnitType
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getGroupingUnitType()
		 * @generated
		 */
		EEnum GROUPING_UNIT_TYPE = eINSTANCE.getGroupingUnitType( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.attribute.HorizontalAlignment <em>Horizontal Alignment</em>}' enum.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.attribute.HorizontalAlignment
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getHorizontalAlignment()
		 * @generated
		 */
		EEnum HORIZONTAL_ALIGNMENT = eINSTANCE.getHorizontalAlignment( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.attribute.IntersectionType <em>Intersection Type</em>}' enum.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.attribute.IntersectionType
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getIntersectionType()
		 * @generated
		 */
		EEnum INTERSECTION_TYPE = eINSTANCE.getIntersectionType( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.attribute.LeaderLineStyle <em>Leader Line Style</em>}' enum.
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		 * <!-- end-user-doc -->