Unsubdivide node

https://user-images.githubusercontent.com/14288520/200894325-805455f6-8493-430b-a772-ff91564802b5.png

Functionality

Reduce detail in geometry containing grids.

See also

Blender doc: https://docs.blender.org/api/current/bmesh.ops.html#bmesh.ops.unsubdivide

Example of usage

https://user-images.githubusercontent.com/14288520/200895518-6d0e8f21-e327-4b9d-8555-57629bb10d0d.png