⭐ Add Windows equivalent install script

I'm a fan of finding ways to make installation of tools easier on Windows (choco-style). Added the option to run an install command in PowerShell identical to the linux install command and added instructions to the README. Tested on Windows 10 & Windows 11. In the future, I'd love to be able to install rokit via [Chocolatey](https://docs.chocolatey.org/en-us/create/create-packages/): `choco install rokit`