Fork of minizip contrib in zlib that includes:

- AES encryption
- I/O buffering
- PKWARE disk spanning

It also has the latest bug fixes that having been found all over the internet including the minizip forum and zlib developer's mailing list.

AES Encryption - Improved encryption

+ Requires all files in the aes folder
+ Requires #define HAVE_AES

When using the zip library with password protection it will default to AES 256-bit encryption. 
When using the unzip library it will automatically use AES when applicable. 

I/O Buffering - Reduces I/O bottlenecks

    ourbuffer_t buffered = {0};
    zlib_filefunc64_def fileFunc64 = {0};
    
    fill_win32_filefunc64W(&buffered->filefunc64);
    fill_buffer_filefunc64(&fileFunc64, buffered);
    
    unzOpen2_64(wFilename, &fileFunc64)
    
PKWARE disk spanning

To create an archive with multiple disks use zipOpen3_64 supplying a disk_size value in bytes.

    extern zipFile ZEXPORT zipOpen3_64 OF((const void *pathname, int append, ZPOS64_T disk_size, 
        zipcharpc* globalcomment, zlib_filefunc64_def* pzlib_filefunc_def));

The central directory is the only data stored in the .zip and doesn't follow disk_size restrictions.

When using the unzip library it will automatically determine when in needs to span disks.