I performed some minor updates to [ndns](https://github.com/rockcavera/nim-ndns), but the interesting addition is [initSystemDnsClient()](https://rockcavera.github.io/nim-ndns/ndns.html#using-system-dns-server)
This procedure starts a DNS client with the IP used by the operating system to resolve DNS requests. Obviously I couldn't support all platforms, but Windows, Linux and BSD are already supported. Note: I believe macOS can be supported with Linux and BSD implementation (resolv), but I don't have a mac to test. Happy New Year!
