X11: default to XPM-format tile file and rip screen

People have been wondering how to change the tiles on the X11
version, and the old default of NetHack-specific binary tile data
isn't directly editable with image editing tools.

Also show in the #version info if xpm and graphic rip are enabled.

util/makedefs.c

@@ -1674,6 +1674,12 @@ static const char *build_opts[] = {
     "terminal capability library",
 #endif
 #endif
+#ifdef USE_XPM
+    "tile_file in XPM format",
+#endif
+#ifdef GRAPHIC_TOMBSTONE
+    "graphical RIP screen",
+#endif
 #ifdef TIMED_DELAY
     "timed wait for display effects",
 #endif