Resend email, if user has not confirmed account for X days

Problem/Motivation

Hi and thank you very much for this super helpful module.

I was just looking for something closely related, that we could put into a submodul here, I think: Automatically re-sending a confirmation mail reminder X days after the user has registered, but never confirmed his account.
This should be done by cron.

Do you like the idea to have that as submodule?

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes