configured github actions (build, flake8, pytest)

.github/workflows/actions.yaml

@@ -0,0 +1,26 @@
+name: mtf2json build and tests
+on: [push, pull_request]
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v3
+      with:
+        python-version: "3.10"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install poetry flake8
+        poetry install --sync
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --statistics
+    - name: Test with pytest
+      run: |
+        poetry run pytest -v
+