Get resumes

This allows us to use the new Resume GET api that has been created via the Ruby-API-Gem.  This has 100% line coverage for all lines added.  
That is why you would make the Criteria Object have those attributes and it will be included in the query. (criteria.to_h)

Just pulling this directly from the other resume get criteria; 
(Of course you would change the attributes to be external_resume_id and resume_hash)
````ruby

module Cb
  module Criteria
    module Resume
      class Get
        attr_accessor :oauth_token, :external_id

        def initialize(args = {})
          @oauth_token        = args[:oauth_token] || ''
          @external_id        = args[:external_id] || ''
        end

        def to_hash
          { :OAuthToken => @oauth_token, :ExternalID => @external_id }
        end

        alias :to_h :to_hash
      end
    end
  end
end
````