[Feature Request] Add support for encrypted commnication with authentication method

It appears that right now the link relay will accept a web socket connection from any client and send/receive the data without encryption.

This is a feature request to add support for an encrypted transport protocol with an authentication method. One solution could be secure web sockets (wss) with https authentication.

Reference to potential solution:
- https://devcenter.heroku.com/articles/websocket-security