API Improvments to Switchboard Events

The switchboard allows realtime updates over websockets.

Many businesses use other dashboard solutions to see overall business progress such as Microsoft BI, Tableau, and Grafana. However they are not able to use the data from the Switchboard due to lacking documentation and examples of how to retrieve this information from the switchboard.

This results in many customers complaints that they have to use 2 different systems to view data, and can not view it in a single pane of glass.

Adding documentation and websocket support allows businesses to bring the Switchboard business metircs into existing service intgration platforms, providing centralized visability for business managers across different systems.

This should be a rather easy implementation on Sangoma's part as all that should be needed is documentation and examples for users to access the existing data.