This commit adds the 'ca' plugin for creating and managing
lightweight CAs. The initial implementation supports a single level
of sub-CAs underneath the IPA CA.
This commit also:
- adds the container for FreeIPA CA objects
- adds schema for the FreeIPA CA objects
- updates ipa-pki-proxy.conf to allow access to the Dogtag
lightweight CAs REST API.
Part of: https://fedorahosted.org/freeipa/ticket/4559
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
