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
* @generated
	 */
	int GROUPING_UNIT_TYPE = 48;
	/**
	 * The meta object id for the '{@link org.eclipse.birt.chart.model.attribute.HorizontalAlignment <em>Horizontal Alignment</em>}' enum.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @see org.eclipse.birt.chart.model.attribute.HorizontalAlignment
	 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getHorizontalAlignment()
	 * @generated
	 */
	int HORIZONTAL_ALIGNMENT = 49;
	/**
	 * The meta object id for the '{@link org.eclipse.birt.chart.model.attribute.IntersectionType <em>Intersection Type</em>}' enum.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @see org.eclipse.birt.chart.model.attribute.IntersectionType
	 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getIntersectionType()
	 * @generated
	 */
	int INTERSECTION_TYPE = 50;
	/**
	 * The meta object id for the '{@link org.eclipse.birt.chart.model.attribute.LeaderLineStyle <em>Leader Line Style</em>}' enum.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @see org.eclipse.birt.chart.model.attribute.LeaderLineStyle
	 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getLeaderLineStyle()
	 * @generated
	 */
	int LEADER_LINE_STYLE = 51;
	/**
	 * The meta object id for the '{@link org.eclipse.birt.chart.model.attribute.LegendBehaviorType <em>Legend Behavior Type</em>}' enum.
	 * <!-- begin-user-doc -->