Bug 120317 Set "dimension" property to 3D in "properties" view, error appears in layout editor.
Description: Set "dimension" property to 3D in "properties" view, error appears in layout editor. Steps to reproduce: 1. Add a 2D chart in property editor. 2. Set its dimension property to "three-dimension" in properties view. 3. Error appears in chart.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/extension/IReportItem.java
* serialize the model as Base64 encoded data.
	 * 
	 * @param propName
	 *            the model property name to serialize
	 * @return a byte array that represents the serialized extended element
	 *         model.
	 */
	public ByteArrayOutputStream serialize( String propName );
	/**
	 * Deserializes the model. The property is visible to BIRT and its type is
	 * {@link org.eclipse.birt.report.model.metadata.XMLPropertyType}. The data
	 * provided will be that created by the <code>serialize</code> method. A
	 * well-written extension will handle two exceptional cases. First, it will
	 * handle all previous versions of this same extension. Second, it will
	 * handle erroneous input, perhaps created when a human editied the saved
	 * state by hand.
	 * 
	 * @param propName
	 *            the model property name to deserialize
	 * @param data
	 *            a byte array stream containing the serialized data
	 * @throws ExtendedElementException
	 *             if the serialized model is invalid
	 */
	public void deserialize( String propName, ByteArrayInputStream data )
			throws ExtendedElementException;
	/**
	 * Gets the list of all the property definitions that the extended element
	 * model has.
	 *