Add cleanup utility wells

[JoerivanEngelen]

Mistakes in iMOD5 wells databases are quite common. We need a cleanup utility to easily fix these.

I encountered the following things to cleanup for the Well package:

1. Filter completely above model top. -> Put filter in top layer.
2. Filter top above model top, filter bottom in model domain. -> Clip filter top to model top.
3. Filter completely under model base. -> Remove well
4. Filter bottom below model base, filter top in model domain. -> Clip filter bottom to model base
5. Well in inactive cells -> Remove well
6. Well filter very thin: (screen_top - screen_bottom < min_thickness) -> Make point filter
7. Well filter screen bottom above screen top -> Make point filter (Or remove?)