Expose way to set Windows Sdk

[TingPing]

It is required for any sort of sanity when multiple Sdks are installed (for example when using AppVeyor CI).

You can pass /p:WindowsTargetPlatformVersion to msbuild or define WindowsTargetPlatformVersion in the project files.

CMake supports this: https://cmake.org/cmake/help/latest/variable/CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION.html

[jpakkane]

This would probably be a per-project setting rather than a per-target one?

[TingPing]

Yes.

[TingPing]

It is also something that I'd say is up for the builder/distributor to set not the project necessarily (maybe it could require newer than specific versions?).