Fix some Tramp problems seen during tests

Fix some Tramp problems seen during tests

* lisp/net/tramp-crypt.el (tramp-crypt-file-name-handler-alist):
Add `access-file'.
(tramp-crypt-file-name-for-operation): Rewrite.  Take second
argument into account.
(tramp-crypt-file-name-handler): Use it.
(tramp-crypt-send-command): Set buffer multibyte (but utf8 files
still don't work).
(tramp-crypt-handle-access-file): New defun.
(tramp-crypt-do-copy-or-rename-file): Short track if both files
are on a crypted remote dir.

* lisp/net/tramp.el (file-notify-rm-watch): Declare.
(tramp-inhibit-progress-reporter): New defvar.
(tramp-message): Display message only if not suppressed by
progress reporter.
(with-tramp-progress-reporter): Suppress concurrent progress
reporter messages.
(tramp-file-notify-process-sentinel): Simplify.