Add more msvc versions.

[laramiel]

Consider adding more msvc versions. Based on the wikipedia these might be close:

    elif args.msvc_version == "17.8":
        setPackageSelectionMSVC16(args, packages, args.msvc_version, "10.0.22621", "14.38.17.8", defaultPackages)
    elif args.msvc_version == "17.9":
        setPackageSelectionMSVC16(args, packages, args.msvc_version, "10.0.22621", "14.39.17.9", defaultPackages)
    elif args.msvc_version == "17.10":
        setPackageSelectionMSVC16(args, packages, args.msvc_version, "10.0.22621", "14.40.17.10", defaultPackages)
    elif args.msvc_version == "17.11":
        setPackageSelectionMSVC16(args, packages, args.msvc_version, "10.0.22621", "14.40.17.11", defaultPackages)

[mstorsjo]

Thanks, this should have been implemented in 1817990 now.