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/type/TypePackage.java
* The singleton instance of the package.
	 * <!-- begin-user-doc --> <!--
	 * end-user-doc -->
	 * @generated
	 */
	TypePackage eINSTANCE = org.eclipse.birt.chart.model.type.impl.TypePackageImpl.init( );
	/**
	 * The meta object id for the '{@link org.eclipse.birt.chart.model.type.impl.BarSeriesImpl <em>Bar Series</em>}' class.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @see org.eclipse.birt.chart.model.type.impl.BarSeriesImpl
	 * @see org.eclipse.birt.chart.model.type.impl.TypePackageImpl#getBarSeries()
	 * @generated
	 */
	int BAR_SERIES = 1;
	/**
	 * The meta object id for the '{@link org.eclipse.birt.chart.model.type.impl.LineSeriesImpl <em>Line Series</em>}' class.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @see org.eclipse.birt.chart.model.type.impl.LineSeriesImpl
	 * @see org.eclipse.birt.chart.model.type.impl.TypePackageImpl#getLineSeries()
	 * @generated
	 */
	int LINE_SERIES = 3;
	/**
	 * The feature id for the '<em><b>Visible</b></em>' attribute. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 * @ordered
	 */
	int LINE_SERIES__VISIBLE = ComponentPackage.SERIES__VISIBLE;