Bug 201368 Support "Not In" operator in filter list
Description: After we support "IN" filter we should also support the "Not In" filter. Data part has already support the "Not In" filter, so hope model can support that operator in the filter operator list. Regards!
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleUtil.java
* @param fileName
	 *            the file name of the report design
	 * @param is
	 *            the input stream of the report design
	 * @return true if the input stream is a valid report design, otherwise
	 *         false
	 */
	public static boolean isValidDesign( SessionHandle sessionHandle,
			String fileName, InputStream is )
	{
		ReportDesign design = null;
		try
		{
			ModuleOption options = new ModuleOption( );
			options.setSemanticCheck( false );
			design = DesignReader.getInstance( )
					.read( sessionHandle.getSession( ), fileName, is, options );
			return design != null;
		}
		catch ( DesignFileException e )
		{
			return false;
		}
	}
	/**
	 * Justifies whether a library resource with the given file name is a valid
	 * library.
	 * 
	 * @param sessionHandle
	 *            the current session of the library