[noise] NLS implementation in Go

[Gerardo Di Giacomo]

Hello,

I've published an early beta of a NoiseLingoSocket (NoiseLink) implementation in Go. It is based on Alexey's NoiseSocket implementation at https://github.com/go-noisesocket/noisesocket.

It still misses a few things (like proper payload management) but it supports Switch/Retry/Reject.

You can see it at https://github.com/gedigi/go-nls/tree/dev. Still in the dev branch for now, I'll merge it into master when I've at least completed the payload management and cleaned up the code a little bit.

Feedback and contributions are more than welcome.

Thanks, Gerardo