Add customer satisfaction data-type schema

- Adds schema for customer satisfaction data-type
- Adds new test class for schemas, with new fixtures and everything
![](http://38.media.tumblr.com/1144a23e1ec4afcd49e899327c1e2e60/tumblr_n736srDHgO1rdi7wyo1_1280.png)
Are these 2 assertions doing the same thing, or is there a difference I'm missing here?