Auth driver

[Aki Tuomi]

On 9.8.2019 14.51, Riccardo Paolo Bestetti via dovecot wrote:
> Greetings!
>
> I'm planning to implement a new auth driver. It's going to be, in concept, similar to the Lua and CheckPassword drivers, in that it allows an user program to carry out the authentication and user enumeration steps.

If you do this, please make it as 3rd party repository. Dovecot auth
supports plugins.

Aki