Implement Form data parsing

[Gekctek]

no support for multipart/form-data or application/x-www-form-urlencoded

[jneums]

I think the http parser package handles this already. Might be able to pull it in or re-use some of the code: https://mops.one/http-parser. I'm not sure if it's still being maintained though, I opened a PR and haven't heard anything.

[Gekctek]

Natlabs/Tomi Jaga, from my understanding, has left the ecosystem and it took a couple months for him to respond to me. so probably not at this point