Support for filtering events published to WebSocket adaptor based on QueryString

[mohanvive]

Description:
The current implementation of the UIPublisher Adaptor publishes any received event to all currently subscribed WebSocket sessions without any specific filterization.

This improvement suggests the filtering of the received events based on any query strings used during the time of the WebSocket subscription. Hence, the events are matched against these query strings and are delivered only to those relevant session endpoints.