Add queue lifecycle processes

[NeillShazly]

Messages should have a sensible TTL and logic should be employed to process dead-letter queues for each bus.

This will allow error handling in cases and will also keep the queues clear of unneeded or unfulfilled messages which may block or slow queue logic.

This is connected to the issues on queue documentation. For example, if a VM creation process errors out, the message will never be removed from the the queue. With a proper TTL, this message would be dead-lettered and could be used to indicate error conditions that affect efficiency.