Bug 150347 Support binary stream as preview image.
See 144843. We need model to save binary strame as report preview image. Currently, preview image is an external image. Maybe need a type to distinguish preview image type.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/ListPropertyState.java
* Constructs the design parse state with the design file parser handler.
	 * This constructor is used when this list property to parse is a property
	 * of one element.
	 * 
	 * @param theHandler
	 *            the design file parser handler
	 * @param element
	 *            the element which holds this property
	 */
	ListPropertyState( ModuleParserHandler theHandler, DesignElement element )
	{
		super( theHandler, element );
	}
	/**
	 * Constructs the design parse state with the design file parser handler.
	 * This constructor is used when this list property to parse is a member of
	 * one structure.
	 * 
	 * @param theHandler
	 *            the design parser handler
	 * @param element
	 *            the element holding this list property
	 * @param propDefn
	 *            the definition of the property which is structure list
	 * @param struct
	 *            the structure which holds this list property
	 */
	ListPropertyState( ModuleParserHandler theHandler, DesignElement element,
			PropertyDefn propDefn, IStructure struct )
	{