Fix macos Ventura build fix

[vkravets]

I'm not sure if its correct fix, I'm not C++ developer =)

But from some macOs version libsharpyuv begins to be the part of libwebp which is package webp. I don't know how to correctly change cmake file to add only part of libwebp. But I hope as "dirty" fix it can help another people who want to play at latest version of macOs )

Also I've update the README-OSX.md with the list of packages which I'm using on my machine ti successfully compile the project.

Enjoy the game!

[noyatsenko]

Maybe you like this build script on x86_64 and ARM from Mojave to Ventura. build_macos.txt

Updates: patch PostprocessBundle lib paths and copy SDL2 lib.