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
* @return the meta object for data type '<em>Legend Item Type Object</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.LegendItemType
	 * @model instanceClass="org.eclipse.birt.chart.model.attribute.LegendItemType"
	 *        extendedMetaData="name='LegendItemType:Object' baseType='LegendItemType'" 
	 * @generated
	 */
	EDataType getLegendItemTypeObject( );
	/**
	 * Returns the meta object for data type '{@link org.eclipse.birt.chart.model.attribute.LineDecorator <em>Line Decorator Object</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for data type '<em>Line Decorator Object</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.LineDecorator
	 * @model instanceClass="org.eclipse.birt.chart.model.attribute.LineDecorator"
	 *        extendedMetaData="name='LineDecorator:Object' baseType='LineDecorator'" 
	 * @generated
	 */
	EDataType getLineDecoratorObject( );
	/**
	 * Returns the meta object for data type '{@link org.eclipse.birt.chart.model.attribute.LineStyle <em>Line Style Object</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for data type '<em>Line Style Object</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.LineStyle
	 * @model instanceClass="org.eclipse.birt.chart.model.attribute.LineStyle"
	 *        extendedMetaData="name='LineStyle:Object' baseType='LineStyle'" 
	 * @generated
	 */
	EDataType getLineStyleObject( );
	/**
	 * Returns the meta object for data type '{@link org.eclipse.birt.chart.model.attribute.MarkerType <em>Marker Type Object</em>}'.