OpenFlow 1.0: add a test case for NEC PF5240

This capture was produced using a NEC PF5240 switch running OS-F3PA
V4.0.1.0 and configured for one OpenFlow instance with 8 ports. A short
exchange covers features not seen in previous OF1.0 captures. It
installs 8 flows that hit 3 of the 11 tables present on the device:
"normal 1", "expanded" and "emergency". This is correctly reflected in
subsequent flow/table stats reply messages. The queue
stats/configuration messages (typically absent from most other
implementations) cover 2 ports with 8 queues each. After the exchange
completes the controller shuts down.