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
* generally what the user cares about, and is what appears in the property
 * sheet and other UI.
 * <p>
 * Members and classes in the property value system include:
 * <p>
 * <ul>
 * <li>The {@link #propValues}member stores the property values set on this
 * element.</li>
 * <li>The {@link #setProperty( String, Object )}method sets a property value
 * on this element.</li>
 * <li>The {@link #clearProperty}method unsets a property value on this
 * method.</li>
 * <li>The {@link #getLocalProperty( Module, String )}method gets the property
 * value, if any, set on this element.</li>
 * <li>The {@link #getProperty( Module, String )}method gets the effective
 * value of the property.</li>
 * </ul>
 * 
 * <h3>Element Name</h3>
 * 
 * Elements can have a name. The semantics of the specific element type
 * determine if the element name is optional or required. In a few contexts, the
 * name may be ignored (not supported). The name uniquely identifies an element
 * and is locale-independent. (The display name, described below, is
 * localizable.) Elements with a name can be referenced in the design or in
 * code. Elements without a name can be referenced in code by navigating to the
 * element.
 * <p>
 * If an element has a name, then it resides in a name space. All name spaces
 * reside in the {@link Module Module}.