refactor!: add pylint

add
- .pylintrc
- pylint pre-commit hook

BREAKING CHANGE: Since Ignition 7.9 relies on Jython 2.5.3, this
  project was adapted to conform with Python 2.5.6

  Replace `from __future__ import print_function` with `import pprint`
  Add `from __future__ import with_statement` where required
  Remove features not available in Python 2.5

.pre-commit-config.yaml

@@ -17,3 +17,10 @@ repos:
       - id: pydocstyle
         additional_dependencies:
           - toml
+  - repo: local
+    hooks:
+      - id: pylint
+        name: pylint
+        entry: pylint
+        language: system
+        types: [python]