'color' in simple options menu

'color' appears in the simplified O menu for curses, but was not
showing up for tty.  That's because it is hidden when tiles are in
use, and tty has had a bogus value for iflags.wc_tiled_map.

Presence of USE_TILES is not a reliable way to tell whether tiles
are available in a multi-interface binary.  Nor is the setting of
DEFAULT_WC_TILED_MAP from config.h.

include/optlist.h

@@ -78,6 +78,8 @@ static int optfn_##a(int, int, boolean, char *, char *);
     { m, OptS_##sec, 0, b, opt_##a, s, OthrOpt, n, v, d, No, c,         \
       (boolean *) 0, &optfn_##a, al, z, (const char *) 0, On, On, 0 },
 
+/* this is not reliable because USE_TILES might be defined in a
+   multi-interface binary but not apply to the current interface */
 #ifdef USE_TILES
 #define tiled_map_Def On
 #define ascii_map_Def Off