Bug 130492 Provide a method to serialize the report with library information.
Currently, when engine generate the report document file, the document does not contain any library information. That will cause many propblem on server side. Model should provide a method to serialize the report with library information to a stream so that the generated report document can contain all information that the report need.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/DesignElement.java
* set the display name id by calling the
	 * {@link #setProperty( String, Object )}method.
	 * <p>
	 * Part of: The name system.
	 * 
	 * @return Returns the displayNameID.
	 */
	public String getDisplayNameID( )
	{
		return (String) getLocalProperty( null, DISPLAY_NAME_ID_PROP );
	}
	/**
	 * Sets the unique ID for this element. The ID can be set only once, when
	 * the element is first added to the design.
	 * 
	 * @param newID
	 *            The id to set.
	 */
	public void setID( long newID )
	{
		id = newID;
	}
	/**
	 * Returns the unique element ID. The ID will be valid only if element IDs
	 * were enabled in the MetaDataDictionary.
	 * 
	 * @return The unique ID. Returns 0 if element IDs are not enabled.
	 */
	public long getID( )
	{