希望增加对7z的支持

[iZaiZaiA]

RT

[richies-dev]

Translates to: "Hope to add support for 7z"

I don't use this library, but is there any reason 7z isn't currently supported? there's libraries such as node-7z which I have used that do it.
Is it a licensing problem, or is it just not a feature that's needed now?