Creates a new XdkWidnow for browsing an XDK file.
        
        :param      parent      | <QWidget>
                    filename    | <str>

def browse( parent, filename = '' ):
        """
        Creates a new XdkWidnow for browsing an XDK file.
        
        :param      parent      | <QWidget>
                    filename    | <str>
        """
        dlg = XdkWindow(parent)
        dlg.show()
        
        if ( filename ):
            dlg.loadFilename(filename)