Add example for reading contents from zip file using void * buffer with the zip file's contents.

[AraHaan]

I have a use case to use miniz to read the contents of a zip file from a pointer obtained from the win32 api function LockResource to obtain the data of the zip file that is within the win32 resource section.

Why? This is so I can then grab python314.dll from within the zip file (as a void *) and then use MemoryLoadLibrary, MemoryGetProcAddress to get all of the exports, and then on process cleanup MemoryFreeLibrary. This is basically needed to get my embedded python down to a single file.

[AraHaan]

This was probably worded a little but oddly, but basically the zip file itself is a void * pointer inside of the exe file and not actually on disk.