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
	 */
	EEnum getMarkerType( );
	/**
	 * Returns the meta object for enum '{@link org.eclipse.birt.chart.model.attribute.Orientation <em>Orientation</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for enum '<em>Orientation</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.Orientation
	 * @generated
	 */
	EEnum getOrientation( );
	/**
	 * Returns the meta object for enum '{@link org.eclipse.birt.chart.model.attribute.Position <em>Position</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for enum '<em>Position</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.Position
	 * @generated
	 */
	EEnum getPosition( );
	/**
	 * Returns the meta object for enum '{@link org.eclipse.birt.chart.model.attribute.RiserType <em>Riser Type</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for enum '<em>Riser Type</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.RiserType
	 * @generated
	 */
	EEnum getRiserType( );
	/**
	 * Returns the meta object for enum '{@link org.eclipse.birt.chart.model.attribute.RuleType <em>Rule Type</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->