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
* @see org.eclipse.birt.chart.model.attribute.Location#getX()
	 * @see #getLocation()
	 * @generated
	 */
	EAttribute getLocation_X( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.attribute.Location#getY <em>Y</em>}'.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Y</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.Location#getY()
	 * @see #getLocation()
	 * @generated
	 */
	EAttribute getLocation_Y( );
	/**
	 * Returns the meta object for class '{@link org.eclipse.birt.chart.model.attribute.Location3D <em>Location3 D</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for class '<em>Location3 D</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.Location3D
	 * @generated
	 */
	EClass getLocation3D( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.attribute.Location3D#getZ <em>Z</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>Z</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.Location3D#getZ()
	 * @see #getLocation3D()