classify is called on const arguments

[aaronmallen]

Current Behavior

When passing a Class or Module to ActiveInteractor::Organizer::Base.organize or ActiveInteractor::Base.contextualize_with the class name is mutated by String#classify.

Expected Behavior

When I pass a Class or Module to a method I expect the class or module to be returned correctly without mutation.

Steps to Reproduce

1. Create an interactor named PlaceData
2. Create an organizer that organizes PlaceData
3. inspect the organizer's organized interfaces
4. Notice PlaceData is missing from the collection.

Additional Comments

In the reproduction steps PlaceData is missing because classify forces the InteractorInterface to search for PlaceDatum. Calling classify on a passed const will convert the const to a string and then singularize that string. If a class or module is passed as an argument we should rely on NameError to protect us from invalid constants and not run any mutation on the passed class or module.

see #167