refactor: Setup package structure to follow the Scientific Python Library Development Guide #342

	# This workflow will install Python dependencies, run tests and lint with a single version of Python
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python

	name: Unit Tests

	on:
	push:
	branches:
	- main
	- dev
	pull_request:
	branches:
	- main
	- dev
	workflow_dispatch:

	jobs:
	build:
	runs-on: ${{matrix.os}}
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.9", "3.10", "3.11"]
	os: [ubuntu-latest, windows-latest, macOS-latest]

	steps:
	- name: Checkout caustics
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Record State
	run: \|
	pwd
	echo github.ref is: ${{ github.ref }}
	echo GITHUB_SHA is: $GITHUB_SHA
	echo github.event_name is: ${{ github.event_name }}
	echo github workspace: ${{ github.workspace }}
	pip --version

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install pytest pytest-cov torch wheel
	# Install deps
	cd $GITHUB_WORKSPACE
	pip install -r requirements.txt
	shell: bash

	- name: Install Caustics
	run: \|
	cd $GITHUB_WORKSPACE
	pip install -e .[dev]
	pip show caustics
	shell: bash

	- name: Test with pytest
	run: \|
	cd $GITHUB_WORKSPACE
	pytest -vvv tests/
	shell: bash

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