BLIP In Nim

This is an implementation of the BLIP messaging protocol, in the Nim language ♥. (BLIP is an extension of WebSockets that supportst multiplexed request-response messaging.)

At the moment (June 2020) it's quite new and incomplete, but coming along quickly.

To-Do:

• Prioritized queuing of urgent messages (not sure this is important, though)
• Better error handling
• Better WebSocket "subprotocol" parsing