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 '<em>Line Decorator Object</em>' data type.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.attribute.LineDecorator
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getLineDecoratorObject()
		 * @generated
		 */
		EDataType LINE_DECORATOR_OBJECT = eINSTANCE.getLineDecoratorObject( );
		/**
		 * The meta object literal for the '<em>Line Style Object</em>' data type.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.attribute.LineStyle
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getLineStyleObject()
		 * @generated
		 */
		EDataType LINE_STYLE_OBJECT = eINSTANCE.getLineStyleObject( );
		/**
		 * The meta object literal for the '<em>Marker Type Object</em>' data type.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.birt.chart.model.attribute.MarkerType
		 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getMarkerTypeObject()
		 * @generated
		 */
		EDataType MARKER_TYPE_OBJECT = eINSTANCE.getMarkerTypeObject( );
		/**
		 * The meta object literal for the '<em>Orientation Object</em>' data type.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->