s3: torture: Add a test for setting and getting ACLs on stream handles (SMB2-STREAM...

s3: torture: Add a test for setting and getting ACLs on stream handles (SMB2-STREAM-ACL).

It shows this isn't done correctly for streams_xattr.

A common config is:

vfs_objects = streams_xattr acl_xattr

to store both streams and Windows ACLs in xattrs.

Unfortunately getting and setting ACLs using handles
opened on stream files isn't being done correctly
in Samba.

This test passes against Windows 10.

This adds tests that prove this doesn't work. Next
patch will add the fix and remove the knownfail.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>