up-to-date code

[Neustradamus]

@dexman, @simonseyer, @RossAnderson: Can you update the code?
Currently, it is not up-to-date.

Maybe you can do a repo for minizip and another one for minizip-ng?

Original MiniZip place:

• https://www.winimage.com/zLibDll/minizip.html

zlib master branch:

• https://github.com/madler/zlib/
• https://github.com/madler/zlib/tree/master/contrib/minizip

zlib develop branch:

• https://github.com/madler/zlib/tree/develop
• https://github.com/madler/zlib/tree/develop/contrib/minizip

minizip-ng, a fork:

• https://github.com/zlib-ng/minizip-ng

Thanks in advance.