Set autowiring types on services with many alternatives like encoder

[chalasr]

See #256

[weaverryan]

👍 this makes sense (and thanks, that was crazy fast)! The other 2 you added, for JWSProviderInterface and TokenExtractorInterface also seem to make sense, but it just depends on whether or not you want to encourage people to inject these directly into their services (I noticed that they're public=false). That's a subjective call :).

Cheers!

[chalasr]

it just depends on whether or not you want to encourage people to inject these directly into their service

For the TokenExtractorInterface, it needs to be injected into the JWTTokenAuthenticator which is intended to be extended by users.

About the JWSProviderInterface, we realized that some needs (more or less specific) may involve to extend our DefaultEncoder with, sometimes, no need for re-writing the logic of the DefaultJWSProvider which is injected into, that's why I thought adding the autowired type onto may be useful.

Thanks for your review!