Resume recs addition

this adds the ability to call for resume recs through the api gem.  This requires an OAuth token which is usually generated through Services::OAuth in Consumer domain, but you can do this using any OAuth client including the CB 3scale ruby gem.
This type of thing - response parsing and model generation - should be handled in a Response object. Here's an example: https://github.com/cbdr/ruby-cb-api/blob/master/lib/cb/responses/job/search.rb

I'll drop a comment above where you'd be using that new object.