Add pkg extraction support

[TheOfficialFloW]

[LiEnby]

Will it be able to promote pkg too?

[TheRadziu]

@KuromeSan imo, having issue title in mind, it will ONLY extract the files to wherever directory user wants, so as long as you have license in your license database[or extracted content is DRM free like CrunchyRoll App] and app/dlc is extracted to proper directory, it should work just fine with existing refresh livearea feature.

[LiEnby]

That's a shame. It'd be kinda cool to be able to use fpkg for homebrew :d

[SMNFXCN]

don't you need the zrif to extract a pkg?

[TheRadziu]

@FutabaHoneyOTU no, to extract pkg you need pkg keys, but they are hardcoded in all current pkg extraction tools. zRIF is just a NoNpDRM license to use the title.