Auto detect not working for .7z files and other types

[kenkit]

I'm using this library in my project as a plugin, so far everything is working fine except auto-detection for specific filetypes like 7z.

[kenkit]

Found how to add this in https://github.com/YACReader/yacreader/blob/master/compressed_archive/compressed_archive.cpp
and
https://github.com/getnamo/7zip-cpp/blob/master/7zpp/GUIDs.h