s4:torture: add a test-suite for VSS
This test will not be run from the main torture test runner in selftest,
as there we don't pass the required arguments 'twrp_file' and
'twrp_snapshot'.
The test needs a carefully prepared environment with provisioned
snapshot data, so the test will be started from a blackbox test
script. That comes next.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13688
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit
48ddb87a32ca44c2fcc5aac0cc28c5527dc7eade)