V2.1: Integrate everything from the todo

[Thumuss]

See TODO.md

• [X] ""pre-export"" package by giving them what they need
• [ ] Documentation for developpers
  • [ ] utils.rs
  • [ ] main.rs
  • [ ] commands.rs → remake it?
  • [ ] commands/create.rs
  • [ ] commands/link.rs
  • [ ] commands/list.rs
  • [ ] commands/unlink.rs
  • [ ] commands/install.rs
• [x] Download packages from unofficial repos, see #3
  • [x] git2-rs
  • [x] Dependencies managed
  • [x] use utpm namespace to use libs (or portable so without any links) → It wouldn't be as good as it sounds, typst can't use package outside the data folder
  • [x] Maybe a launchable version from utpm to link packages?
• [x] Portable version and only installable version
  • [x] Integrate install
  • [x] And all of todos from above with #3
• [ ] New commands for install:
  • [ ] Info.rs
  • [ ] Update, (using semver)
  • [x] Bulk delete
  • [ ] Clean?
• [ ] Maybe a listing dependencies system? -> Track every dependencies to delete when they aren't used -> Not for now
• [ ] Templates (first impl) -> Not now → V3
• [ ] JSON only mode

[Thumuss]

I'll merge for now when the build will be complete. I'll make a new PR for the next real major update

[Thumuss]

See v2.1