Move some hieradata around for easier testing in vagrant

I now have a virtual hierarchy level for setting up my lower memory
settings when using vagrant/virtualbox.

The gms settings are in an example-puppet-master.yaml file in the
nodes directory which are needed for the instructions.

hieradata/nodes/example-puppet-master.yaml

@@ -0,0 +1,4 @@
+---
+git_management_system: 'gitlab'
+gms_server_url: 'https://gitlab-server'
+gms_api_token: 'BDkZfWWnk4LVTLHdAywd'

site/profile/manifests/puppetmaster.pp

@@ -2,6 +2,7 @@ class profile::puppetmaster {
 
   class { 'hiera':
     hierarchy  => [
+      'virtual/%{::virtual}',
       'nodes/%{::trusted.certname}',
       'common',
     ],