Add ci with codetools

.github/workflows/codetools.yml

@@ -0,0 +1,33 @@
+name: ci
+
+on: [push, pull_request]
+
+env:
+  PACKAGE: virtual_ship
+
+jobs:
+  codetools:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/[email protected]
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: install
+        run: pip install ".[dev]"
+      - name: flake8
+        run: flake8 ./$PACKAGE
+      - name: pydocstyle
+        run: pydocstyle ./$PACKAGE
+      - name: sort-all
+        run: |
+          find ./$PACKAGE -type f -name '__init__.py' -print0 | xargs -0 sort-all
+          [[ -z $(git status -s) ]]
+          git checkout -- .
+      - name: black
+        run: black ./$PACKAGE
+      - name: isort
+        run: isort ./$PACKAGE