status display - port modules (trunk only)

Introduction of a new set of window port status display
routines.  The new routines are conditional on
	STATUS_VIA_WINDOWPORT
being defined in config.h. See the experimental section,
where the #define resides for the time being.

win/Qt/qt_win.cpp

@@ -5281,6 +5281,12 @@ struct window_procs Qt_procs = {
     genl_preference_update,
     genl_getmsghistory,
     genl_putmsghistory,
+#ifdef STATUS_VIA_WINDOWPORT
+    genl_status_init,
+    genl_status_finish,
+    genl_status_enablefield,
+    genl_status_update,
+#endif
 };
 
 extern "C" void play_usersound(const char* filename, int volume)