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
* Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.attribute.DateFormatSpecifier#getDetail <em>Detail</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Detail</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.DateFormatSpecifier#getDetail()
	 * @see #getDateFormatSpecifier()
	 * @generated
	 */
	EAttribute getDateFormatSpecifier_Detail( );
	/**
	 * Returns the meta object for class '{@link org.eclipse.birt.chart.model.attribute.EmbeddedImage <em>Embedded Image</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for class '<em>Embedded Image</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.EmbeddedImage
	 * @generated
	 */
	EClass getEmbeddedImage( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.attribute.EmbeddedImage#getData <em>Data</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Data</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.EmbeddedImage#getData()
	 * @see #getEmbeddedImage()
	 * @generated
	 */
	EAttribute getEmbeddedImage_Data( );
	/**
	 * Returns the meta object for class '{@link org.eclipse.birt.chart.model.attribute.ExtendedProperty <em>Extended Property</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->