Change-of-owner for Callouts

[Vectorial1024]

This is quite similar to what happened to Psychology back in the days, but Callouts apparently got a new owner after the previous owner did not update in time: https://steamcommunity.com/sharedfiles/filedetails/?id=2882283988

We should think about how to deal with this when we make the Callouts compat. #40

[Vectorial1024]

Update: because they literally did NOT change anything for that part, the old code can be used for the new mod directly with no actions from me. Nice.