Support bash installer for Windows Server

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Windows Server 2019 (and 2022) are quite difficult to install software on:

• They typically do not have access to the Store app or winget (X-ref: https://github.com/microsoft/winget-cli/issues/1929)
• They cannot open .appinstaller files or .msix files

While none of these things work, I do have bash and associated tools installed on my Windows server system; perhaps we can add the ability for the curl | bash installer to work on Windows as well?