GitLab

* more organized version

* add copyrights

* proper versioning

* proper versioning

* cleanup project; read version from pyproject

* read version from pyproject

* update weblink

* cleanup nerfacc file structure

* propoer test contraction

* proper test for intersection

* proper tests for pack, grid, and intersection

* proper testing for rendering

* bug fix

* proper testing for marching

* run check reformat

* add hints on nvcc not found

* add doc to readme

* resume github check

* update readthedocs env

* rm tool.setuptools.packages.find