Add sanity check test script to ensure routing hasn't changed.
Add sanity check test script to ensure routing hasn't changed.

It replays previously seen URLs from the log files to make sure they
still work and the overall routing behavior hasn't changed.

NREL/api-umbrella,NREL/api-umbrella,apinf/api-umbrella,NREL/api-umbrella-router,NREL/api-umbrella,apinf/api-umbrella,NREL/api-umbrella,apinf/api-umbrella,apinf/api-umbrella,NREL/api-umbrella-router,OdiloOrg/api-umbrella-router,OdiloOrg/api-umbrella-router,OdiloOrg/api-umbrella-router,NREL/api-umbrella-router,apinf/api-umbrella