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
* <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Prefix</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.FractionNumberFormatSpecifier#getPrefix()
	 * @see #getFractionNumberFormatSpecifier()
	 * @generated
	 */
	EAttribute getFractionNumberFormatSpecifier_Prefix( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.attribute.FractionNumberFormatSpecifier#getSuffix <em>Suffix</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Suffix</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.FractionNumberFormatSpecifier#getSuffix()
	 * @see #getFractionNumberFormatSpecifier()
	 * @generated
	 */
	EAttribute getFractionNumberFormatSpecifier_Suffix( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.attribute.FractionNumberFormatSpecifier#getDelimiter <em>Delimiter</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Delimiter</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.FractionNumberFormatSpecifier#getDelimiter()
	 * @see #getFractionNumberFormatSpecifier()
	 * @generated
	 */
	EAttribute getFractionNumberFormatSpecifier_Delimiter( );
	/**
	 * Returns the meta object for class '{@link org.eclipse.birt.chart.model.attribute.Gradient <em>Gradient</em>}'.