Add "Engines" and "EnginesPrefix" parameters to EngineApiBoundary config

[kremen]

"Engines" parameter

A list of engine names that can be used instead of the "EnginesPath" parameter.

This helps in the case when engines are placed in a project's root directory.

Engines:
  - my_engine1
  - my_engine2

"EnginesPrefix" parameter

Prefix/namespace of engine classes

This helps in the case when engine classes have a namespace.

module MyNamespace
  class MyEngine::MyModel < ApplicationModel
  end
end

EnginesPrefix: 'MyNamespace'

[maxh]

Neat! Let me reach out to someone with write permission at Flexport to get this approved and merged.

[kremen]

@maxh Thanks a lot for your review! I am going to work on my PR updating this Friday.

[kremen]

The spec diff is difficult to parse. Let's please add a new spec instead of changing the existing spec. It could be called something like:

spec/rubocop/cop/flexport/engine_api_boundary_spec_root_engines.rb

If the existing spec needs to change, please make those changes small.

Updated.

[kremen]

@maxh Should I do anything else for this PR to be approved and merged?

[maxh]

Unfortunately, I don't have merge rights to this repository. Maybe @bpatzin-flexport or @noafroboy can help get this merged?

[maxh]

I reached out to Flexport again to try to get this merged. Worst case, we can fork the repo and publish a new gem.

[noafroboy]

Figuring out how to give you maintainer powers Max.