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 LOCATION3_D__X = LOCATION__X;
	/**
	 * The feature id for the '<em><b>Y</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int LOCATION3_D__Y = LOCATION__Y;
	/**
	 * The feature id for the '<em><b>Z</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int LOCATION3_D__Z = LOCATION_FEATURE_COUNT + 0;
	/**
	 * The number of structural features of the '<em>Location3 D</em>' class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int LOCATION3_D_FEATURE_COUNT = LOCATION_FEATURE_COUNT + 1;