win32 USER_SOUNDS

This uses pmatch() as a default pattern matcher,
and #defines USER_SOUNDS_REGEX for Qt
to enable the code for regular expressions.

This is enabled for win32tty and win32gui.

include/ntconf.h

@@ -23,6 +23,7 @@
 
 #define SELF_RECOVER		/* Allow the game itself to recover from an aborted game */
 
+#define USER_SOUNDS
 /*
  * -----------------------------------------------------------------
  *  The remaining code shouldn't need modification.