2FA authentication

[kevindeyne]

https://medium.com/@ihorsokolyk/two-factor-authentication-with-java-and-google-authenticator-9d7ea15ffee6
https://saaswebsites.com/userflow-articles/two-factor-authentication-2fa-user-flow-examples-and-tips/

[kevindeyne]

I've generally used SaaS for this, but since Hydra strives to be an opinionated credential provider, seems like something it should be able to do out of the box itself.