[Libguestfs] [PATCH libguestfs 0/2] lib: Return correct osinfo field for Windows 11

https://bugzilla.redhat.com/show_bug.cgi?id=2012658 We don't currently detect the correct version for Windows 11 (client, server is OK). After some discussion it turns out the accepted way to do this is to look at the Windows build ID. So add some code in the daemon to grab the build ID from the Windows registry and expose it through a new API ("guestfs_inspect_get_build_id") and adjust the osinfo code on the library side accordingly. Because, at least in theory, Linux distros could have build IDs, I didn't call the API "guestfs_inspect_windows_...". There is a possible build ID field in /etc/os-release, although it seems to be unloved. This fixes the <osinfo> field. I intentionally did not adjust either the Windows version (still 10.0) nor the product name (which is completely bogus, but apparently how Microsoft intended it to be). Rich.