Added github workflows

.github/workflows/black.yml

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+name: Black
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  black:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: psf/black@stable
+        with:
+          options: "--check --verbose --diff"
+          src: "./fano"

.github/workflows/publish.yml

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+name: Publish to PyPI
+
+permissions:
+  id-token: write
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    name: Build and publish to PyPI
+    if: startsWith(github.ref, 'refs/tags')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Set up Python
+        uses: actions/setup-python@v3
+      - name: Install pypa/build
+        run: >-
+          python -m
+          pip install
+          build
+          --user
+      - name: Build a binary wheel and a source tarball
+        run: >-
+          python -m
+          build
+          --sdist
+          --wheel
+          --outdir dist/
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1

.github/workflows/ruff.yml

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+name: Ruff
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1

.github/workflows/tests.yml

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+
+name: tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [
+          ubuntu-latest,
+          windows-latest,
+          macOS-latest,
+        ]
+        python-version: ["3.10", "3.12"]
+    name: ${{ matrix.os }}, Python ${{ matrix.python-version }} test
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install package
+        run: |
+          python -m pip install --upgrade pip
+          pip install setuptools wheel
+          pip install -e .[test]
+      - name: Test with pytest
+        run: |
+          pip install pytest pytest-cov
+          pytest --cov=. --cov-report=xml
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: coverage.xml
+          flags: unittests
+          env_vars: OS,PYTHON
+          name: codecov-umbrella