Code formatting with rustfmt / cargo fmt

[Johan Milanov]

Please consider formatting your code with rustfmt, which can be done by running cargo fmt. This way, you'll get a consistent style and it will be easier for other people to contribute to the project. If you don't like the default configuration there's a list of options here: https://rust-lang.github.io/rustfmt/.

[Derin Önder Eren]

Thanks for the recommendation! I will format the code and add .editorconfig for others want to play around with source code.