Add initial CI config

.github/workflows/main.yml

@@ -0,0 +1,28 @@
+
+name: main
+
+on:
+  push:
+    branches: [ "master", "devel" ]
+  pull_request:
+    branches: [ "master", "devel" ]
+
+jobs:
+  quicktest:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install dependencies
+        run: sudo apt-get update && sudo apt-get install -y python3 python3-pip
+
+      - name: Run build
+        run: pip3 install .[test]
+
+      - name: Run tests and collect coverage
+        run: pytest -v -m "not slow" --cov=./src
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}