Add pytests and workflow for PRs #4

	name: Build C code and run tests

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	build-and-test:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	with:
	submodules: recursive

	- name: Install system dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y \
	libpng-dev \
	libyaml-dev \
	libgsl-dev \
	libgdal-dev \
	libopencv-dev \
	cmake \
	build-essential \
	python3-dev

	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.11"

	- name: Install Python dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install pytest
	cd scripts/python
	pip install -e .

	- name: Configure and build C code
	run: \|
	mkdir -p build
	cd build
	cmake -DWITH_OPENCV=ON ..
	make -j$(nproc)

	- name: Run tests
	run: \|
	pytest --maxfail=3 --tb=short

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