Add set diff and containment operations to PointSet2d #73

	name: CI
	on: pull_request

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.11
	- uses: abatilo/[email protected]
	with:
	poetry-version: 1.2.2
	- name: Install dependencies
	run: poetry install
	- name: Lint
	run: poetry run flake8 --verbose
	- name: Run tests
	run: poetry run pytest --verbose

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