[Request] Add new field connection for new total magic tags

[codente]

Issue Overview

Requesting a new field connection for the magic tags for total from this branch (https://github.com/pods-framework/pods/tree/feature/5039-total-special-field)

If you could even somehow modify the total parameters, so it could, for example, only show the total for posts that have a certain custom field value, that would awesome!

[quasel]

will look into it once it's released - no promises ^^