Added a Gemfile that has gems listed for basic Puppet unit tests.

Gemfile

@@ -0,0 +1,14 @@
+source ENV['GEM_SOURCE'] || "https://rubygems.org"
+
+#Install the gems but don't run `require gemname` when bundler runs
+#Source: http://stackoverflow.com/questions/4800721/bundler-what-does-require-false-in-a-gemfile-mean
+#Source of the list of gems: https://github.com/puppetlabs/puppetlabs-ntp/blob/master/Gemfile
+group :development, :unit_tests do
+  gem 'rake',                    :require => false
+  gem 'rspec-puppet',            :require => false
+  gem 'puppetlabs_spec_helper',  :require => false
+  gem 'puppet-lint',             :require => false
+  gem 'simplecov',               :require => false
+  gem 'puppet_facts',            :require => false
+  gem 'json',                    :require => false
+end