We set these variables using facts in init, no need
to duplicate the logic all around the codebase.

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.

When a package install/update fails due to network blips or other spotty
availability, retry it. If the failure is a real failure (e.g. package
is really not there) it still fails after 3 tries (Ansible default).

* Added checks to make ci for yaml linting
* Modified y(a)ml files to pass lint checks

The Ansible package module will call the correct package manager for the
underlying OS.