[zlib-ng] Support zlib compatibility mode

[donny-dont]

Use the value of ZLIB_COMPAT to set the directory used by vcpkg_cmake_config_fixup.

• Changes comply with the maintainer guide.
• SHA512s are updated for each updated download.
• The "supports" clause reflects platforms that may be fixed by this new version.
• Any fixed CI baseline entries are removed from that file.
• Any patches that are no longer applied are deleted from the port's directory.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is added to each modified port's versions file.

[dg0yt]

The recipe here does not (and cannot) offer the ZLIB compat API. So this change cannot be tested in vcpkg CI.

The variable ZLIB_COMPAT is not defined in CMake script mode (portfile). (What you have from your custom triplet is VCPKG_CMAKE_CONFIGURE_OPTIONS, as mentioned in your repo). It could be discussed to add a documented portfile variable to make control from triplet explicit.

[dg0yt]

i.e. The triplet can also set ZLIB_COMPAT, but then it shouldn't be necessary to also set VCPKG_CMAKE_CONFIGURE_OPTIONS. It should be wired in the portfile.

[donny-dont]

Implementation of using ZLIB_COMPAT in a triplet over at WebKitForWindows/WebKitRequirements#208