F19033 authentication in qfq
This branch introduce a special column `_authenticate` that orders Typo3 to mark a provided accounts as a logged-in user. The authentication takes places after a link generated by this column is opened, which can take places in two ways:
- by an HTTP redirect response generated directly by the column, or
- by clicking on a link/button generated by the column
The authentication process is highly customizable, allowing for
- creating accounts on the fly
- unlocking disabled accounts and activating expired or not-yet-active accounts
- updating account data on a successful authentication
with the default behavior configured on the extension setting page.
implements #19033