Boolean operations support for cutting out and separating non-manifold paths

This feature is similar to Boolean operation, but it would allow for cutting out or separating non-manifold paths with the other one.

An example use case could look like the following where the final result are lines that are in between color shapes. The lines also could be separated into 3 distinctive groups.


完了した実装では、色付きの図形の間に線が生成され、それらの線を例に示されているように3つの異なるグループに分離できるようにする必要があります。

索引モデルが issue の本文から書いたものです。