Add Keystone OpenID Connect charm to OpenStack charms

Add new charm that enables Keystone to support OpenID Connect via
Federation.

Change-Id: Ic758858db00a72a136e21c18f452df07f4ea74c2
Required-By: I1b7495f0a5010f9768845882a6e072b5be3f18b9

gerrit/projects.yaml

@@ -1596,6 +1596,12 @@
   acl-config: /home/gerrit2/acls/openstack/charm.config
   options:
     - delay-release
+- project: openstack/charm-keystone-openidc
+  description: Juju Charm - Keystone OpenID Connect
+  upstream: https://github.com/openstack-charmers/charm-keystone-openidc.git
+  acl-config: /home/gerrit2/acls/openstack/charm.config
+  options:
+    - delay-release
 - project: openstack/charm-keystone-saml-mellon
   description: Juju Charm - Keystone SAML Mellon
   acl-config: /home/gerrit2/acls/openstack/charm.config

zuul/main.yaml

@@ -363,6 +363,7 @@
           - openstack/charm-keystone-k8s
           - openstack/charm-keystone-kerberos
           - openstack/charm-keystone-ldap
+          - openstack/charm-keystone-openidc
           - openstack/charm-keystone-saml-mellon
           - openstack/charm-layer-ceph
           - openstack/charm-layer-ceph-base