This commit relocates filter_plugings to lib_utils,
changes the namespacing to prevent unintended use of
older versions that may be present in filter_plugins/
directory on existing installs.

Add lib_utils to meta depends for roles

Also consolidate some plugins into lib_utils from
various other areas.

Update rpm spec, obsolete plugin rpms.

- all images logging and metrics change their default imagePullPolicy
  from Always to IfNotPresent

Automatic merge from submit-queue.

Prometheus endpoint config for hawkular-metrics and cassandra

Prometheus endpoints are exposed in hawkular-metrics and in cassandra by default. This PR adds options to disable them.

Our setup uses annotations to request a separate component, namely the
ACME Controller[1], to request domain-validated certificates from the
Let's Encrypt CA. By setting the necessary annotation via Ansible rather
than manually the system will automatically retrieve a certificate.

[1] https://github.com/tnozicka/openshift-acme

Fixing route spec caCertificate to be correctly capitalized

The prometheus endpoints for cassandra and for hawkular-metrics are
enabled by default. This commit adds the option to disable them.