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
* begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 * @ordered
	 */
	int COLOR_DEFINITION__RED = FILL_FEATURE_COUNT + 1;
	/**
	 * The feature id for the '<em><b>Green</b></em>' attribute. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 * @ordered
	 */
	int COLOR_DEFINITION__GREEN = FILL_FEATURE_COUNT + 2;
	/**
	 * The feature id for the '<em><b>Blue</b></em>' attribute. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 * @ordered
	 */
	int COLOR_DEFINITION__BLUE = FILL_FEATURE_COUNT + 3;
	/**
	 * The number of structural features of the '<em>Color Definition</em>' class.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int COLOR_DEFINITION_FEATURE_COUNT = FILL_FEATURE_COUNT + 4;
	/**