Integrate Smartcard support

This patch is a VDSM part of the integrating
the smartcard support to the ovirt:

This VDSM part integrates the smartcard  in
a supported way, not just as an unsupported custom hook.

It also removes the smartcard hook itself.

Change-Id: I7cdaef420c8381d588f6215e66e6a80dd9d2e44b
Signed-off-by: Tomas Jelinek <tjelinek@redhat.com>
Signed-off-by: Peter V. Saveliev <peet@redhat.com>
Signed-off-by: Antoni S. Puimedon <asegurap@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/8450
Tested-by: Omer Frenkel <ofrenkel@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>