of https://github.com/BarabasGitHub/zig into
BarabasGitHub-improve-windows-networking

Conflicts:
 lib/std/os.zig

This commit resolves conflicts with the changes to std.os which removed
the EAGAIN error handling interactions with the event loop. The solution
to the conflict was to apply EAGAIN => return error.WouldBlock into the
improved windows networking branch.