smbtorture: verify attributes on fake quota file handle

smbtorture: verify attributes on fake quota file handle

The expected DOS attributes are taken from a Windows 2016 server. The expected
timestamps are what Samba has returned before commit 572d4e3a56eef00e29f9348:
NTTIME(0), ie no value.

The upcoming fix will restore this behaviour. Windows of course does
return *some* timestamps, but as it's neither documented nor was I able to
figure out where they would be coming from, as well as the Windows client apparently
doesn't care, I didn't bother with implementing some sophisticated heuristic to
return some timestamps.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14731

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit 1e338d51602a7dca6108e5e8704f5cdde4740713)