Add pylint (#892)

* Move mypy/flake8/isort config files to more 'natural' places.

* Add pylint.

* Look at no-member.

* Look at pointless-* and unnecessary-pass.

* Look at useless-*.

* Lint.

plugins/modules/openssl_dhparam.py

@@ -188,7 +188,6 @@ class DHParameterBase:
     @abc.abstractmethod
     def _do_generate(self, module: AnsibleModule) -> None:
         """Actually generate the DH params."""
-        pass
 
     def generate(self, module: AnsibleModule) -> None:
         """Generate DH params."""