Integrate linting (#173)

* integrate pylint
* fix linting
* Merge branch 'master' of github.com:scalableminds/webknossos-cuber into linting
* format
* format
* add missing .pylintrc

Author: philippotto

.github/workflows/main.yml

@@ -29,6 +29,9 @@ jobs:
 
     - name: Check formatting
       run: black --check .
+
+    - name: Lint code
+      run: python -m pylint -j4 wkcuber
 
     - name: Python tests
       run: py.test tests