Puppet Xnat script to get environment ready for 1.7.1 deploy

Either reuse available https://bitbucket.org/NRGpuppet/puppet_module_xnat

Or modify Jonathan's puppet script https://github.com/jopasserat/puppet-xnat

Env requirements: https://wiki.xnat.org/documentation/getting-started-with-xnat-1-7/installing-xnat-1-7