Update Pylint config file

[bgottula]

The Pylint config file needs a refresh for a couple reasons:

• It was generated using an older version of Pylint, and some of the rules have since been changed or deprecated
• The current .pylintrc was auto-generated and sets nearly all of the rules explicitly, even though most of them are just enforcing whatever the default values were at the time.

Do the following:

• [x] Create a minimal Pylint config file with only those rules that I want to modify from the defaults.
• [x] Disable most of the formatting rules, since I plan to start using Black for formatting soon.
• [x] Decide whether to continue using the .pylintrc format or the newer TOML format.

[bgottula]

Done. I decided to keep the .pylintrc format for now. At some point if I start using a pyproject.toml in place of the current setup.py then I could reconsider.

I left a couple of rules disabled that I may want to enable in the future:

• pylint.extensions.mccabe which checks cyclomatic complexity. There are several functions and methods that violate this that I didn't want to spend time refactoring right this moment.
• duplicate-code which of course checks for duplicate code. There are still a few instances of duplicate code that I need to address.