Add linters workflow

.github/workflows/linters.yml

@@ -0,0 +1,32 @@
+name: Linters
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: ['*']
+
+jobs:
+
+  run_linters:
+
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - uses: actions/checkout@v4
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: 3.11
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install flake8 isort
+
+    - name: Run linters
+      run: |
+        flake8 superdsm
+        isort superdsm --check-only --diff
+        isort tests --check-only --diff