Ensure TripleO deploys using Puppet 5

Puppet 4 is quickly approaching EoL and as we target newer versions of the base OS, we'll need to address the puppet version we currently consume. Puppet 5 is for the most part a drop in update to Puppet 4 and should not require any major updates. Upon initial testing with puppet 5 on fedora 28 with the existing code base has worked so far so it's likely this is just a packaging update.