This PS adds functional tests for built-in or "owned"
Deckhand documents. This includes 4 new document types
for which schemas were created:
- CertificateAuthority
- CertificateAuthority
- PublicKey
- PrivateKey
These new types are required by Promenade.
Finally, a bug was fixed which was causing secrets to
return as {'secret': "original secret payload"} which has
been fixed to return as simply "original secret payload".
Change-Id: Ifb4d41f5f4ac96b3103210853ad763d766ace93e
9212a1d8b9