Large groups are reported as empty

[tdjong]

In our LDAP we have some large groups.
However when we list them with this module, the members result is empty, because paging is not used.

We has experience with paging like shown in:
https://gist.github.com/mattfahrner/c228ead9c516fc322d3a

[rbw]

I'm curious if this works better in authzync (I don't have a huge LDAP directory to test with).
https://github.com/rbw0/authzync

It uses a different LDAP library.