* Some requests may be sensitive enough to require a secondary
two-factor authorization on the spot
* Examples: changing password, changing email address, viewing API
tokens etc
* This creates a core handler that can attach to any Auth-able method
which will require a "twofactorcode" query param before processing
* Signup -> Login -> JWT-Doot flow now works for users
* Administrators cannot currently sign up for obvious reasons
* Segmented the main.go methods into a core controller package
* Created Base, Auth, User and Admin models
* Added skeleton API structure containing: User signup, User & Admin
login, authorized zones, ping tests
* Simple user signup functional
* Skeleton user login functional, no means to verify as of yet
* Added POSTMAN file
