Network-destination test only on Windows
Network-destination test only on Windows

There's no trivial localhost-SMB share mount on non-Windows OSes so only
run this test on Windows.

jeffkl/msbuild,cdmihai/msbuild,rainersigwald/msbuild,chipitsine/msbuild,Microsoft/msbuild,sean-gilliam/msbuild,Microsoft/msbuild,Microsoft/msbuild,cdmihai/msbuild,rainersigwald/msbuild,jeffkl/msbuild,mono/msbuild,sean-gilliam/msbuild,Microsoft/msbuild,rainersigwald/msbuild,chipitsine/msbuild,cdmihai/msbuild,jeffkl/msbuild,AndyGerlicher/msbuild,chipitsine/msbuild,jeffkl/msbuild,mono/msbuild,AndyGerlicher/msbuild,AndyGerlicher/msbuild,mono/msbuild,AndyGerlicher/msbuild,mono/msbuild,sean-gilliam/msbuild,cdmihai/msbuild,chipitsine/msbuild,rainersigwald/msbuild,sean-gilliam/msbuild