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 class '{@link org.eclipse.birt.chart.model.attribute.Angle3D <em>Angle3 D</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for class '<em>Angle3 D</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.Angle3D
	 * @generated
	 */
	EClass getAngle3D( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.attribute.Angle3D#getXAngle <em>XAngle</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>XAngle</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.Angle3D#getXAngle()
	 * @see #getAngle3D()
	 * @generated
	 */
	EAttribute getAngle3D_XAngle( );
	/**
	 * Returns the meta object for the attribute '{@link org.eclipse.birt.chart.model.attribute.Angle3D#getYAngle <em>YAngle</em>}'.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @return the meta object for the attribute '<em>YAngle</em>'.
	 * @see org.eclipse.birt.chart.model.attribute.Angle3D#getYAngle()
	 * @see #getAngle3D()
	 * @generated
	 */
	EAttribute getAngle3D_YAngle( );
	/**