build.ps1: Updated zlib version.
Revert "Update OpenSSL to be compatible with zlibwapi library"

This reverts commit 9acc5d33e2a940d59705fe63070634bc20bce1c3.
zlib: Removed ZLIB_WINAPI preprocessor definition from all projects and changed references to zlibwapi back to zlib1
zlib: Patch minizip to not use Win8 API if not building for Win8.