Expose data structures available in Wordpress 4.7

[johanmynhardt]

There are several structural changes that are now available in 4.7, like renderable fields where the field has 2 children with the fields raw and rendered, as well as when a delete request is made, it will respond with a new field indicating whether it was deleted or not, and the previous value of the object. There is a new meta field that is also available on the Term entity.