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 feature id for the '<em><b>Font</b></em>' containment reference.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int TEXT__FONT = 1;
	/**
	 * The feature id for the '<em><b>Color</b></em>' containment reference.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int TEXT__COLOR = 2;
	/**
	 * The number of structural features of the '<em>Text</em>' class.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	int TEXT_FEATURE_COUNT = 3;
	/**
	 * The meta object id for the '{@link org.eclipse.birt.chart.model.attribute.impl.TextAlignmentImpl <em>Text Alignment</em>}' class.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @see org.eclipse.birt.chart.model.attribute.impl.TextAlignmentImpl
	 * @see org.eclipse.birt.chart.model.attribute.impl.AttributePackageImpl#getTextAlignment()
	 * @generated
	 */
	int TEXT_ALIGNMENT = 34;
	/**
	 * The feature id for the '<em><b>Horizontal Alignment</b></em>' attribute.