User Admin API: Ability to exclude users from user list matching glob(s)

This issue has been migrated from [#11609](https://github.com/matrix-org/synapse/issues/11609).

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For instance, we want to list all users on the homeserver which aren't matching certain criteria (like users not containing `whatsapp` or `signal`). We'd like to do this on the homeserver side to avoid huge load/memory consuption on both Synapse and the processing process since we have many more users that need to be excluded than included.

I'd imagine something like:

`https://host/_synapse/admin/v2/users?not_user_id=whatsapp¬_user_id=signal`