Feature: generated injector delegator

[michalbundyra]

In documentation we are suggesting to create in manually. I think we can have it in the library as it's generic code.

See: https://docs.zendframework.com/zend-di/cookbook/aot-guide/#5-add-aot-to-the-service-manager

Documentations needs update if it is going to be accepted.

• [X] Are you creating a new feature?
  • [X] Why is the new feature needed? What purpose does it serve?
  • [X] How will users use the new feature?
  • [X] Base your feature on the develop branch, and submit against that branch.
  • [X] Add only one feature per pull request; split multiple features over multiple pull requests
  • [X] Add tests for the new feature.
  • [x] Add documentation for the new feature.
  • [x] Add a CHANGELOG.md entry for the new feature.

[michalbundyra]

@tux-rampage

I also think it makes sense to add it to the ConfigProvider

I am not sure about it, what if someone already has it added there (the custom one) or if someone what to use another?

[tux-rampage]

@tux-rampage

I also think it makes sense to add it to the ConfigProvider

I am not sure about it, what if someone already has it added there (the custom one) or if someone what to use another?

Good point. Could you update the AoT guide?

[michalbundyra]

@tux-rampage

Could you update the AoT guide?

Docs is updated now.

[tux-rampage]

@michalbundyra As discussed in slack, I've addressed this one. Can you pleas re-check?

[tux-rampage]

Static analysis is failing: https://travis-ci.org/zendframework/zend-di/jobs/625613032#L425 This was introduced in #56