Provide session management capabilities

[juluriaj]

Add session management capabilities to QnABot to track previous questions by the user in named sessions and add ability for the users to retrieve the session by selecting a session from their past interactions. So that the customer experience would be similar to other chatbot interfaces like ChatGPT or CoPilot.

[dougtoppin]

@juluriaj Thanks for your suggestion, we will review it and get back to you

[ajaysw]

@juluriaj - thank you for your suggestion. We have added this to our backlog and will prioritize.