build: synchronise CMake and Package.swift for Windows

[compnerd]

Add the additional link dependency on Windows and a macro definition to
avoid some spew from the library build. Note that this is using an OS
specific block to alter the settings rather than the inline definition
since older versions of s-p-m may crash on the application of the
setting.

This requires bumping the tools version to 5.2.

[compnerd]

CC: @tomerd @egorzhdan

[compnerd]

@swift-ci please test

[abertelrud]

Seems that the Linux test is still using 5.1 tools:
'/home/buildnode/jenkins/workspace/pr-swift-tools-support-core-linux/branch-master/swift-tools-support-core' is using Swift tools version 5.2.0 but the installed version is 5.1.0

So that's not a problem with this PR but with the testing infrastructure. Not sure who maintains that and how we get it updated.

[abertelrud]

Changes look good to me, but we also need to get the PR test infra updated to 5.2 (or ideally 5.3 now) to properly test this change.

[compnerd]

@abertelrud please let me know if there’s anything that I can do to help with this. I think that this is going to be required to get a build of s-p-m on windows setup.

[tomerd]

cc @shahmishal for CI issue

[abertelrud]

Thanks; I have also filed a bug report on the CI testing issue.

[shahmishal]

@swift-ci test

[abertelrud]

Thanks for updating it so quickly, @shahmishal ! @compnerd, this can now be merged when you think it's appropriate.