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.

This is a part of the etcd_ like role consolidationi into an action-based role.
As part of the consilidation some roles have been removed and some replaced by
include_role module. Resulting in reorder and shift of role dependencies
from a role into a play.

* Ansible systemd module used in place of service module
* Refactored command tasks which are no longer necessary
* Applying rules from openshift-ansible Best Practices Guide

Signed-off-by: Sylvain Baubeau <sbaubeau@redhat.com>