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
* @see org.eclipse.birt.chart.model.attribute.GroupingUnitType
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getGroupingUnitTypeObject()
		 * @generated
		 */
		EDataType GROUPING_UNIT_TYPE_OBJECT = eINSTANCE.getGroupingUnitTypeObject( );
		/**
		 * The meta object literal for the '<em>Horizontal Alignment Object</em>' data type.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.attribute.HorizontalAlignment
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getHorizontalAlignmentObject()
		 * @generated
		 */
		EDataType HORIZONTAL_ALIGNMENT_OBJECT = eINSTANCE.getHorizontalAlignmentObject( );
		/**
		 * The meta object literal for the '<em>ID</em>' data type.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see java.lang.String
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getID()
		 * @generated
		 */
		EDataType ID = eINSTANCE.getID( );
		/**
		 * The meta object literal for the '<em>Intersection Type Object</em>' data type.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.attribute.IntersectionType
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getIntersectionTypeObject()
		 * @generated