adding pry, pry-stack-explorer and pry-byebug to dev dependencies

Gemfile

@@ -32,18 +32,9 @@ group(:development, :test) do
 
   gem "ruby-shadow", platforms: :ruby unless RUBY_PLATFORM.downcase.match(/(aix|cygwin)/)
 
-  # For external tests
-  #  gem 'chef-zero', github: 'chef/chef-zero'
-  #  gem 'cheffish', github: 'chef/cheffish'
-  #  gem 'chef-provisioning'#, github: 'chef/chef-provisioning'
-  #  gem 'chef-provisioning-aws', github: 'chef/chef-provisioning-aws'
-  #  gem 'test-kitchen'
-  #  gem 'chefspec'
-  #  gem 'chef-sugar'
-  #  gem 'poise', github: 'poise/poise', branch: 'deeecb890a6a0bc2037dfb09ce0fd0a8931519aa'
-  #  gem 'halite', github: 'poise/halite'
-  #  gem 'foodcritic', github: 'acrmp/foodcritic', branch: 'v5.0.0'
-  #  gem 'chef-rewind'
+  gem "pry"
+  gem "pry-byebug"
+  gem "pry-stack_explorer"
 end
 
 group(:travis) do