Add support for autowiring Jackson handlers

This commit introduces the SpringHandlerInstantiator
class, a Jackson HandlerInstantiator that allows to autowire
Jackson handlers (JsonSerializer, JsonDeserializer, KeyDeserializer,
TypeResolverBuilder and TypeIdResolver) if needed.

SpringHandlerInstantiator is automatically used with
@EnableWebMvc and <mvc:annotation-driven />.

Issue: SPR-10768