Adding Fragment Cache to AMS

It's an upgrade based on the new Cache implementation #693.
It allows to use the Rails conventions to cache
specific attributes or associations.
It's based on the Cache Composition implementation.

test/adapter/json_api/has_one_test.rb

@@ -41,6 +41,7 @@ module ActiveModel
             expected = [
               {
                 id: "43",
+                rating: nil,
                 type: "bios",
                 content:"AMS Contributor",
                 links: {