- update decompression functions to use native libs
- add support for 7zip and tar.xz archives with SharpCompress
- add .7z and tar.xz artifacts to releases
- remove linux non-appimage builds from PRs
Reviewed-on: https://git.ryujinx.app/projects/Ryubing/pulls/26
Main benefit to this is sharing the C# model definitions from what the server returns and Ryujinx uses in-app without differences.
Additionally removed the GitHub API JSON models.
This reduces the amount of requests for an update from 3 if an update is needed, or 2 if not; to 1 if an update is needed, and none if an update is not. The difference comes from using this update server to check if an update is needed, and not GETing a snippet content for the release channels.
