Pyradiance

Add obj2mesh
Update setup.py to use `setuptools` because `distutils` is deprecated

**Full Changelog**: https://github.com/LBNL-ETA/pyradiance/compare/v0.3.1...v0.4.0

**Full Changelog**: https://github.com/LBNL-ETA/pyradiance/compare/v0.3.0...v0.3.1

What's Changed
* Falsecolor by sariths in https://github.com/LBNL-ETA/pyradiance/pull/31


**Full Changelog**: https://github.com/LBNL-ETA/pyradiance/compare/v0.2.0...v0.3.0

What's Changed
* feat(anci.py): Added a utility write method to write data to file. by sariths in https://github.com/LBNL-ETA/pyradiance/pull/28
* doc(example files): Added geometry and other assests for demonstrating features. by sariths in https://github.com/LBNL-ETA/pyradiance/pull/26
* fix(utils.py): using split instead of shlex.split for splitting commands
* fix(px.py): fix ra_tiff output bug and expose it at the top level

New Contributors
* sariths made their first contribution in https://github.com/LBNL-ETA/pyradiance/pull/28

**Full Changelog**: https://github.com/LBNL-ETA/pyradiance/compare/v0.1.2...v0.2.0

fix(ot.py): move stdin after file paths, assuming the modifiers in the stdin is always defined in one of the input files if not in the stdin itself already.

Feat: add `bytes` attribute to Primitive class that converts primitive to bytes ready to action.
Fix: moved source argument `-f` after the expression `-e` as a standard setup.