Add support for Spring Data Rest @RepositoryRestResource

[steinmaerivoet]

At the moment only RestControllers of Spring web MVC are supported. I want to use a RepositoryRestResource to have a PersistentEntityResourceAssembler available to build up my HATEOAS collection models.

I found out extending RepositoryRestMvcConfiguration to override defaultMethodArgumentResolvers is not working because of an accessibility problem. There is already an issue created for this:
spring-projects/spring-data-rest#1981

If you could upvote this issue to get this fixed, I could make a PR to support SDR in spring-search.