Code formatting

[raphaelschwinger]

We should use automatic code formatting to make our code pretty :-)

Tasks

• [ ] configure formatter for vscode in vscode workspace
• [ ] format all files

[raphaelschwinger]

@reheinrich I have seen in your latest PR that you use a code formatter. Which on is it and could you integrate it into the vscode workspace settings?

[reheinrich]

@raphaelschwinger , I use the Black code formatter with the default settings. However, I do not work with VSCode but with PyCharm and could easily integrate it there.