admintest: new helper pkg for */admin type test suites
admintest: new helper pkg for */admin type test suites

All of our <foo>/admin/ test suites have similar needs for rados conn
and wrapped debugging. Create a short package that is meant to only
be consumed by our test suites.

Signed-off-by: John Mulligan <eda8ad33169deab44f9fe65847f99e368da6c91b@redhat.com>

ceph/go-ceph,ceph/go-ceph,ceph/go-ceph