Implemented: EZP-23095: (Re?)Introduce a way to skip the confirmation mail sent upon user registration. Updated

Feature request link: https://jira.ez.no/browse/EZP-23095

Hello all, I saw that patrickallaert's pull request on this feature request had stalled: https://github.com/ezsystems/ezpublish-legacy/pull/1016

The changes being requested in his pull request were small so I made them for him and submitted this improved pull request.

Please let me know if more changes are needed or desired. We are happy to help!

Cheers,
Brookins Consulting