camel-debug - Support `pause` of all route exchanges

it would convenient for investigation to be able to pause all current route exchange at the nearest point (surely next step) to investigate what is going on with the routes.

It would be convenient to be able to pause all exchanges and also to be able to pause for a Route definition or a Camel context.

Currently, suspend is no more starting new routes but finishes the current exchanges. The stop is no more starting the routes and not finishing the current exchange.

Technical:

it would likely be some option you turn on|off to have this behaviour - we can debate whether it should be on as default (new) or off (like now). To checked that it is not breaking other flow, like in Hawt.io to use the new behavior as default.

or a parameter on the suspend/stop methods?

or create another one, as pause