PoC integration with FSCHateoasBundle

just opening this to allow for discussion and brain storming.

this is just a proof of concept to show that its possible to leverage the route collection data to add the hateoas link relations.

a proper implementation would add the metadata during the bootstrap phase of Symfony2. this would prevent the runtime overhead and would ensure that the metadata isnt just linked to specific routes/controllers.

this would probably also allow the removal of the ``HateoasCollectionInterface``