reason tokens for why an API is public/protected

[luxe]

sometimes there is functionality that someone wants, but it is not accessible(and not testable) since it is private. Maybe we should have a language token for ["why this is public"] and ["why this is private"].
Something to think about. We wouldn't want to say "this is called by this internally which is why its private". But we may have reasons that something is private... In the event that we may consider changing it, without affecting public interfaces. We might want to provide a note for users to prevent them or have them think about the ramifications of moving an interface from private to public.

[luxe]

probably everything should allow a reason token. Its a meta property of any user chosen value. This should probably be added automatically, and not put into the actual concept.dat