Fixes #1513 - distinguish between RHEL 7 Server and Workstation

When facts are received we parse them and create/assign the operating
system of a host accordingly. We didn't correctly detect the right RHEL
7 distribution and considered every RHEL 7 as Server. For people having...

Fixes #27685 - use networking::primary for detection

fixes #26727 - import host with bonded primary interface

fixes #26627 - rake task to render templates from dir

fixes #26612 - snapshots for nested snippets

Fixes #25451 - Make certificate loading robust

This is copied from Katello's app/services/cert/rhsm_client.rb with
added tests.

Fixes #24744,#24873 - facter 3.x initial support

fixes #3763 - extend rabl templates

Fixes #21232 - verify IP sans when authenticating a SP

Fixes #6006 - Add options to disable updates from facts

Add option ignore_facts_for_operatingsystem:
    do not update system's operating system based on facts
  Add option ignore_facts_for_domain:
    do not update system's domain based on facts