Simple unzip implementation

If you have ever downloaded a zip file with an encoded filename using a character set such as GBK or SHIFT-JIS, then you know what that means.

All files in zip can be decompressed independently, which means that more files there are, the more significant the performance improvement.

If you know unzip has been inactive for over 10year and downstream requires 20+ of security patches.

see https://infozip.sourceforge.net/UnZip.html and https://github.com/archlinux/svntogit-packages/blob/packages/unzip/trunk/PKGBUILD#L16

MIT