Websockets using Connection.WS class does not handle more than 1 connection

[francois-normandin]

The migration from MQTT Connection class with MQTT Connection.Websockets to Connection with Connection.WS is breaking the connection handler's contractual obligations. There is an issue where the first connection works but the handler's process becomes unable to accept more connections.

Workaround for those using Websocket as the connection configuration with the MQTT Broker:
Revert to broker 3.x and use the MQTT Connection base class.

The fix needs to be handled here:
LabVIEW-Open-Source/Connection#2

[francois-normandin]

Temporarily disabled the Websockets unit tests in section 6 of the specification.