Multi Factor Authentication support

[AlexZ]

I believe the package is lacking ability to set multiple 2FA options for the user. Although it's a huge help for devs to have TOTP out of the box, but I can't remember any website that have only TOTP.

The package would benefit a lot if it had native support for Multi Factor Authentication, so you can set your own implementation for 2FA via email, SMS or Fax. )

[Dries Vints]

Right now, we don't have any plans to add more, sorry.