Results 2 issues of Netzwerk2

## Problem Adding an `Extrusion` that uses an `Annulus` and generating its outline normals results in one edge missing from the outline. ## Result ![Screenshot_20240727_123706](https://github.com/user-attachments/assets/176adfa4-6a17-4006-bd54-7ec82ee25363) ## Minimal example ```rs use...

Setting `OIDN_DIR` to any directory makes the library compile on my machine :) I don't know how the linking works, but I have a guess from looking at the `build.rs`...