Provider not returning itself

[Nate-Wilkins]

This is more of a provider style that I've come to like quite a bit from the angular providers and would like to see it also implemented here as well.

i.e

HateoasInterfaceProvider
    .setHalEmbedded('_embedded')
    .setLinksKey('_links');

Would be a pretty simple addition just a matter of wanting it or not.