Removed AuthorizedState enum

[JerrettDavis]

AuthorizedState should only ever be true or false, I have removed the AuthorizedState enum per issue #755.

[JerrettDavis]

It seems the library uses "authorized" and "authenticated" nearly interchangeably. I initially authored this with isAuthorized, but I believe isAuthenticated is more accurate, and it better adheres to similarly named responses in other areas.

On that note, is there any reason why "authorized" is used in place of "authenticated" in other places in the application? To my knowledge, these are different things.

[damienbod]

@JerrettDavis LGTM

[FabianGosebrink]

Looks good to me as well. I am sure @damienbod will answer your questions. Could you in the meantime

1. Target the V12-Branch to merge this PR into releaseV12-WIP. You have to merge V12 Branch into yours.
2. Add a migration chapter to the migration doc. There is a file already in the V12-Branch. There a new chapter can be added. Migration V11 to V 12

Thanks!

[JerrettDavis]

I have corrected the target branch, merged thereleaseV12-WIP branch into mine, and updated the documentation accordingly. Please let me know if any other changes are needed.

Thanks!