On ZIP files

[rphsoftware]

GOMORI's current handling of ZIP files seems to have been implemented in a bit of a janky way.

This proposal aims to create a cleaner way of handling mods inside ZIP files, and builds on top of a Virtual FileSystem concept proposed in #15

By reading the Table of Contents from the zip file, mounting the root folder of the zip folder in the mods/ folder, and shadowing away the actual .zip file, we can provide gomori with a view of the mods folder as if every mod was unpacked, which greatly reduces mod loading complexity, by treating each mod as a mere folder.

Please give feedback on this idea

[rphsoftware]

Additionally, by using a different ZIP parsing library we could implement this entire proposal without ever loading the whole file into memory, just metadata. ( https://www.npmjs.com/package/node-stream-zip allows to enumerate entires without loading the whole file, and afterwards using fs.open and fs.read we can read out individual entries, and just hold a file descriptor)

[rphsoftware]

Loading the whole file into memory is a genuine issue for users with limited RAM and when loading large mods, so this approach should be considered