refs #7779 - Updating to add support for pulp crane

This is the initial PR to add the puppet-crane module.

This module does a simple config of the Pulp Crane application.
We've done this (due to pulling in old versions of our modules) in the past and adjusted in some spots, but given that the location of a config file is determined by the packaging I think it's better to just have these templates top level. e.g.

```
templates/crane.conf.erb
```