For distribution of Radicle on Windows machines, Windows Installer
provides a well-known solution, that comes built in to the operating
system. It also integrates with the Windows package manager WinGet.
Provide an initial version of an `*.msi` build, and integrate it into
GitHub actions to allow downloads via build artifacts.
Since we're eyeing at a Windows build, we should also have some CI
system build on Windows, so that developers that do not run it can
access build logs.
Most of the builds currently fail, but that's okay, the intention is
that they become more green over time.
If you are ever spammed by notifications about these on GitHub, disable
these at https://github.com/settings/notifications (scroll to "System"
and the row "Actions").