Copy OpenStack Swift (Grizzly) Functional tests

Copy the functional tests to our tree so that
we can edit and skip any tests we know we are
not going to support for this release

Change-Id: I93a76550aaaa58de49ec9a7178a34e081b7b7cf0
Signed-off-by: Luis Pabon <lpabon@redhat.com>
Reviewed-on: http://review.gluster.org/5211