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><b>Color</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference STYLE__COLOR = eINSTANCE.getStyle_Color( );
		/**
		 * The meta object literal for the '<em><b>Background Color</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference STYLE__BACKGROUND_COLOR = eINSTANCE.getStyle_BackgroundColor( );
		/**
		 * The meta object literal for the '<em><b>Background Image</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference STYLE__BACKGROUND_IMAGE = eINSTANCE.getStyle_BackgroundImage( );
		/**
		 * The meta object literal for the '<em><b>Padding</b></em>' containment reference feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		EReference STYLE__PADDING = eINSTANCE.getStyle_Padding( );
		/**
		 * The meta object literal for the '{@link org.eclipse.birt.chart.model.attribute.impl.StyleMapImpl <em>Style Map</em>}' class.
		 * <!-- begin-user-doc -->