Basic config for different editors

[LarsMichelsen]

I recognized you are working with a two-space indent. A lot of my changes were made with 4. To reduce the diff sizes and get a bit more consistent coding style I propose to add a .editorconfig which is automatically respected by a lot of IDEs.

[thebigpotatoe]

Great idea, only just really figured how to set up Clang properly on vscode myself. Makes a world of difference.

I think this file and a clang file would help immensely. I will add one for this pull.

[thebigpotatoe]

This has also been addressed in #33