Busy and Router Events #88
Description
the angular router has navigation events that can be subscribed to.
this is now starting to be a common way to do the "busy" state as this will start before the new view is loaded and allows a better visual transition
also api calls that are needed on view init can now be moved to a resolver service that is called in the router logic.
this means that the pattern of doing a busy inside a component can often be removed.
so it would be good if we started to have a common busy that will work with the router events.
this can allow almost all busys to be removed from compnents and just have one for the application in the root / app.component level.
i am starting to see how to do this and can this busy be adapted to work with that style / pattern.