veyron/tools/mgmt/test.sh: finish implementing node manager regression test.
veyron/tools/mgmt/test.sh: finish implementing node manager regression test.

The script mostly follows
https://docs.google.com/document/d/1j7287hPSwKmZq3Nv5Br3WG5--75-N-O1Anpp9oSIAzs/edit,
with some exceptions (e.g., we use binaryd instead of rock-paper-scissors as the
app run by the node manager).

Change-Id: I890bfd6551ac3ea6aecfe4572f17d862028e1444

vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref