⭐ Add Windows equivalent install script

[medallyon]

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: choco install rokit

[CompeyDev]

It seems to work fine but a few changes are required:

• You seem to be visiting the latest release URL, waiting for it to redirect, and capturing the version that it redirects to -- which is kind of a hack. A more proper solution would be to use the GitHub API like we do in the install.sh script by making a request to https://api.github.com/repos/$REPOSITORY/releases/latest and extracting the version returned by that. You would also want to pin the GitHub API version using the X-GitHub-Api-Version header in order to prevent breakages of the script when GitHub updates their API in the future.
• The script output seems very different from that of the UNIX install script. We probably want them both to be similar for parity's sake. Here's how it looks for install.sh:

[1 / 3] Looking for latest rokit release
[2 / 3] Downloading 'rokit-1.0.0-linux-x86_64.zip'
[3 / 3] Running rokit installation

🚀 Rokit links are already up-to-date. (took 55.58ms)                                                                    
Run `rokit --help` to get started using Rokit.

• We can modularize the script a bit more by not hardcoding the repository path into the API / download URLs and instead have them in a constant and format that into the strings.
• You would need to support providing a GitHub API token using the GITHUB_PAT environment variable, in order to bypass ratelimits.

[CompeyDev]

Looks good now!

[CompeyDev]

There is one small change required -- the shell script prints the GITHUB_PAT note the first thing before all other stages, but the powershell one, however, prints it after the first stage. Missed this in my review, just realized it.