proutes should show more information about the matching views

[mmerickel]

In cases where use_global_views=False (the default), it's known statically which views may be invoked for a specific route. With this in mind, proutes could be extended to show a lot more information about each view attached to a route. For example, a separate row for each view with its predicate values, permission, view callable, etc.

The exact output would need to be iterated upon but I think someone could come up with some significant improves without too much effort.

This would be very very helpful to people debugging issues with their config.

related: #3603