Make dunnet insertion functions n-ary

Make dunnet insertion functions n-ary

* lisp/play/dunnet.el (dun-mprinc, dun-mprincl, dun-minsert):
(dun-minsertl, dun-batch-mprinc, dun-batch-mprincl): Change to accept
any number of arguments.
(dun-parse, dun-describe-room, dun-quit, dun-inven, dun-shake):
(dun-take, dun-go, dun-move, dun-press, dun-score):
(dun-compile-save-out, dun-do-logfile): Collect arguments from
multiple insertion calls into less calls with more args.