Merge branch 'js/cmake-vs'

Using the CMake support we added some time ago for real with Visual Studio build revealed there were lot of usability improvements possible, which have been carried out. * js/cmake-vs: hashmap_for_each_entry(): workaround MSVC's runtime check failure #3 cmake (Windows): recommend using Visual Studio's built-in CMake support cmake (Windows): initialize vcpkg/build dependencies automatically cmake (Windows): complain when encountering an unknown compiler cmake (Windows): let the `.dll` files be found when running the tests cmake: quote the path accurately when editing `test-lib.sh` cmake: fall back to using `vcpkg`'s `msgfmt.exe` on Windows cmake: ensure that the `vcpkg` packages are found on Windows cmake: do find Git for Windows' shell interpreter cmake: ignore files generated by CMake as run in Visual Studio