SELECTSAVED handling

By default, enable the SELECTSAVED option for everyone instead
of just for Windows or Qt.  And make Qt obey the 'selectsaved'
run-time option.

It can be disabled in config.h if necessary.

win/Qt/qt_svsel.cpp

@@ -31,6 +31,12 @@
 //  enchancement:  instead of just showing the character name, show
 //  "name-role-race-gender-alignment".
 //
+// Note:
+//  The code in this file is not used if the program is built without
+//  having SELECTSAVED defined or if the run-time option 'selectsaved'
+//  is False.  SELECTSAVED used to be forced for Qt but isn't any more.
+//  Howver, we include this code unconditionally.
+//
 
 extern "C" {
 #include "hack.h"