Parallelize setup of acceptance nodes

This commit updates the acceptance::setup plan to provision
test nodes in parallel. This reduces the amount of time
required to prepare multiple OS nodes for testing.

Author: Sharpie

spec/fixtures/modules/acceptance/plans/setup.pp

@@ -4,7 +4,7 @@
 
   out::message('Installing PE...')
 
-  $primary_servers.each |$server| {
+  $primary_servers.parallelize |$server| {
     $node_facts = run_task('facts', $server).first.value
 
     #debug::break()