EPIC: Event Driven Refactorings

[umesh-timalsina]

We must refactor HTTP-based programming into an event-driven distributed protocol via ZMQ or WS for some sections of the code base. An event bus could also be broadcasting to WS subscribers.

[edavalosanaya]

This is going to be an epic -- multiple PRs to address this implementation.

[edavalosanaya]

Going to create a separate branch called dev-aiodistbus for the epic.