[enh] #401: Introduce isort pre-commit hook

.pre-commit-config.yaml

@@ -3,3 +3,8 @@ repos:
     rev: stable
     hooks:
     - id: black
+-   repo: https://github.com/PyCQA/isort
+    rev: 5.8.0
+    hooks:
+    - id: isort
+      args: ["--profile", "black"]