Add a .fixtures.yml
Add a .fixtures.yml

Need a .fixtures.yml to help with getting rspec environments running
properly. This is also needed for Travis-CI to be useful.

Signed-off-by: Andrew Grimberg <1f872228929e751eea07667e68fbb1655199bd12@linuxfoundation.org>

tykeal/puppet-nexus,hubspotdevops/puppet-nexus,hubspotdevops/puppet-nexus,tykeal/puppet-nexus,DSI-Ville-Noumea/puppet-nexus,ixxus/puppet-nexus,slamont/puppet-nexus,rfletcher/puppet-nexus,MelanieGault/puppet-nexus