Standardize formatting using rustfmt

[flanfly]

I see the advantage of an coding style, but this needs to be checked for automatically. I do not want reviewers to waste their time checking correct brace placement, that's what machines are for. If we have a bot that checks to coding style for every PR, that would be acceptable, but if this is a manual process I'd rather have no coding style at all. In case we decide we want a coding style we must document it w/ instructions on how to format the code.

[sphinxc0re]

I'm already doing that at rpg-rs

[sphinxc0re]

It is automatically checking the code and returning errors

[sphinxc0re]

The problem is, that currently, a lot of the current code would fail regardless of formatting using rustfmt because some code lines are simply too long to format automatically

[sphinxc0re]

The question here is: Do we care about line lengths? If not, we can just configure rustfmt to consider a longer line length