Port GeoJSON

[stefannikolei]

I ported GeoJSON into this lib and removed the check for 4 Coordinates.

With this we only got 17 failing tests (Rust test and JS tests - the additional rust testcases fail in the js lib...) and 31 GREEN

Do we want this lib in here or not? Its not really much magic behind it..

[JimBobSquarePants]

I think we should copy the code as you have but we'll need to add a readme to the project folder saying where we got it. It's annoying they don't have a strict-mode toggle to turn off those warnings.

[JimBobSquarePants]

Just renamed the main branch from master, you'll have to run this locally.

git branch -m master main
git fetch origin
git branch -u origin/main main
git remote set-head origin -a

[JimBobSquarePants]

I'll merge this now because I need it for benchmarking. I'll add the readme and attempt to do something about all the build warnings.