Feature Request: CC another email account on a new booking

[ArtursO]

If there's a new booking, it'd be useful if you could add other emails to which the booking notification goes to. For example, if you have a specific user who takes care of confirming all bookings but isn't the actual person with whom the meeting is scheduled, it'd be good if they were looped in on the email as well.

Thanks by the way for this project, I've seen few (or none) booking UIs as simple and elegant as this one.