s3:utils: let smbstatus report anonymous signing/encryption explicitly

s3:utils: let smbstatus report anonymous signing/encryption explicitly

We should mark sessions/tcons with anonymous encryption or signing
in a special way, as the value of it is void, all based on a
session key with 16 zero bytes.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15412

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Thu May 23 13:37:09 UTC 2024 on atb-devel-224

(cherry picked from commit 5a54c9b28abb1464c84cb4be15a49718d8ae6795)