Added missing logic to RouteComparison.compare_three_objects
Added missing logic to RouteComparison.compare_three_objects

Issues: Previous routes within previous_routes.json were not updating
        when a route changed due to a missing warn state from
        the compare_three_lists, now compare_three_objects, function.

Resolution: Added a logic test within
            RouteComparison.compare_three_objects to see if a stable
            route shows signs of change. E.g. A == B != C.

spgreen/psTrace