* Add Python linter to github actions
* wip
* Add back splat_ext
* Format files
* C++ -> C
* format 2 files
* split workflow into separate file, line length 120, fix excludes
* -l 120 in ci
* update black locally and apply formatting changes
* pyproject.toject
---------
Co-authored-by: Ethan Roseman <ethteck@gmail.com>
