Install (or Update) Ninja Build on Windows (run in admin Powershell)

ninja winNinja Build. Ninja is a build system written with the specific goal of improving the edit-compile cycle time. It is used by default everywhere except when building for iOS.See the manual or docmanual.asciidoc included in the distribution for background and more details. Binaries for Linux, Mac, and Windows are available at GitHub. Run .ninja -h