WebSocketProvider accepts an URLRequest to connect

[marionauta]

In addition to URL, you can use a URLRequest to WebSocketProvider to connect to. This is needed for connecting to sync servers that require custom headers, for example.

var request = URLRequest(url: URL(string: "wss://example.com")!)
request.addValue("token", forHTTPHeaderField: "Authorization") // for example
let websocket = WebSocketProvider(.default)
websocket.connect(to: request)

[heckj]

Nice! Thanks for the refactoring to provide accepting URLRequest as well as URL!