Register each item projector as a service

[msubotovic]

Is it possible have each ItemProjector registered in the container as a separate service with it's own id?

Currently ItemProjector services don't have service id's and there is no way to reuse them or make decorators for each service.

Same goes to the doctrine event listeners (CategorySavedListener etc.).

Is there a reason for this, if not could they be added?

[pamil]

Sorry for such a late response, I'm all for it, but won't have time to do so. If you're willing to add ids to these services, feel free to send a PR :)