New cop: Overhaul/FactoryBoundaries

[Drowze]

This is an opt-in cop that should help extracting from an application into a (micro?) service. It flags usage of configured factories outside the configured paths. E.g.:

# rubocop.yml
Overhaul/FactoryBoundaries:
  Enabled: true
  Factories:
    apple:
      - '**/food_service/**/*.rb'

# # bad:
# spec/car_service/apple_spec.rb
create(:apple)
 

# # good:
# spec/food_service/apple_spec.rb
create(:apple)

[skcc321]

Great work!