Create additional logic in routers to handle notification and session specific routing

[cabishop]

Create additional logic in routing for the following use cases:

1. Check if request contains session id.

• If yes, and if the request is relevant, route to the Primary Agent for the session
• If yes, and if the request is not relevant, route to the most relevant Agent
• If no, route to the most relevant Agent

2. Check if request contains a notification.

• If yes, and if the request is relevant to the notification, route to the Agent that sent the notification
• If yes, and if the request is not relevant to the notification, route to the most relevant Agent
• If no, route to the most relevant Agent