Constructor with no destination prefixes (matches all destinations).
@param inboundChannel the channel for receiving messages from clients (e.g. WebSocket clients)
@param outboundChannel the channel for sending messages to clients (e.g. WebSocket clients)
@param brokerChannel the channel for the application to send messages to the broker
Constructor with no destination prefixes (matches all destinations). @param inboundChannel the channel for receiving messages from clients (e.g. WebSocket clients) @param outboundChannel the channel for sending messages to clients (e.g. WebSocket clients) @param brokerChannel the channel for the application to send messages to the broker