* net/tramp-smb.el (tramp-smb-acl-program): New customer option.

* net/tramp-smb.el (tramp-smb-acl-program): New customer option.
(tramp-smb-errors): Add error messages.
(tramp-smb-actions-with-acl): New defconst.
(tramp-smb-file-name-handler-alist) [set-file-acl]: Add handler.
(tramp-smb-action-with-acl, tramp-smb-handle-set-file-acl): New defuns.
(tramp-smb-handle-file-acl): Rewrite, using "smbcacls".
(tramp-smb-handle-file-attributes): Simplify test for "stat" capability.
(tramp-smb-get-stat-capability): Fix tests.