On hotfix: add pre-commit config to enforce conventional commits style

[kelly-sovacool]

This pre-commit config file contains a git hook to enforce the conventional commits style. After you pull these changes locally and install pre-commit (via pip, conda, or brew), install this hook with pre-commit install. Then it will check your commit message every time you attempt to commit and throw an error if it doesn't follow conventional commits guidelines.

(I accidentally opened #35 against main instead of hotfix)

[dnousome]

Looks very helpful! Tried locally using a conda env and worked for me