Doesn't work in Windows 7 and 8.1

[lgirma]

That is mainly because of these changes:

1. Go version was upgraded to 1.21 which drops support for Windows versions below 10.
2. There is a SetUserObjectInformation() call in _FirstMainStuff() function (inside any_globals.go file) which will make RunAsMain() calls panic in:

• Windows 7 SP1
• Windows 8.1
• Wine (tested in Wine v8)

I confirmed this by forking this repository and removing the SetUserObjectInformation() call. Can that SetUserObjectInformation() call optionally be skipped so that win32 apps built with windigo work fine in those platforms?