Adding a debug log for the confirmation token

[Draiken]

In development if you need the confirmation token, you can only reach it through the email, which more often than not is stored in memory.

This adds a simple way to use the code and since it's only on debug log level it should never affect anything on production environments. Even if the production log level is set to debug, the information is not as sensitive as a password

[britton-jb]

This is good for now, we can revisit it in the future if it's an issue.