Compatibility with login system

[craciu25yt]

Is your feature request related to a bug/problem? If so, please link to the relevant issue or describe it
Yes. I have jpremium in the lobby because I don't have the needed ram for having an auth server.
Describe the solution you'd like
World whitelist. Like that you login inside world auth and after you get teleported to main lobby. So after that 2fa pops up.
Describe alternatives you've considered
Too can be a command whitelist and a cooldown. Like you are allowed just to use /login in next 10 seconds and after 2fa pops up. Or maybe jpremium and other plugins have a api that can be used

Additional context
N/A

[DirtyConcept]

Will be adding an API to the 2FA plugin pretty soon, I might add an option to add compatibility to existing plugins.
Added to the features in 2.0.