Vendor the external cookbooks

Knife-Zero doesn't include Berkshelf support, so vendoring everything in
the repo is convenient again

cookbooks/compat_resource/files/lib/chef_compat/recipe.rb

@@ -0,0 +1,8 @@
+require 'chef/recipe'
+require 'chef_compat/copied_from_chef/chef/dsl/recipe'
+
+module ChefCompat
+  class Recipe < Chef::Recipe
+    include ChefCompat::CopiedFromChef::Chef::DSL::Recipe::FullDSL
+  end
+end