Add python exclusions to gitignore

[daltzctr]

No description provided.

[ThadHouse]

There are too many raw file blocks in here. Do all of these file types get put in the root?

[daltzctr]

It's mostly pulled from the github python template gitignore. The only ones I've noticed locally are __pycache__ and venv

[ThadHouse]

Yeah we'd want to limit this to folders. Raw blocking file types is incorrect, because other projects might need those.

[daltzctr]

@ThadHouse I've minimized to just what I think is necessary for Python

[sciencewhiz]

Under what conditions would these python files end up in a gradle wpi project?

[daltzctr]

It doesn't currently but all robotpy init does is add a robot.py and pyproject.toml, but given #622 I would expect VS Code to create Python projects.

Additionally, robotpy init doesn't have a gitignore either, which requires users to create their own. Using the wpilib project gitignore seems like a good start.

[sciencewhiz]

I think that robotpy init making a .gitignore would be better then copying a C++/Java .gitignore. And even if it was implemented in the vs-code extension, I think it would be a different .gitignore, rather then adding onto the C++/Java one.