Fixes #425 - Enable pulp_ansible and pulp_deb in katello flavor

The katello flavor only enabled content/container and content/rpm,
which meant pulp_ansible and pulp_deb were not in the
PULP_ENABLED_PLUGINS list. This caused ansible content operations
to fail with content type not available errors.

Add content/ansible and content/deb to the katello flavor features
so they get mapped to pulp_ansible and pulp_deb plugins via the
dynamic pulp_plugins variable in base.yaml.

Author: jakduch

src/vars/flavors/katello.yml

@@ -2,5 +2,7 @@
 flavor_features:
   - foreman
   - katello
+  - content/ansible
   - content/container
+  - content/deb
   - content/rpm