Added results processing script to generate statistics and ultimately graphs. Needs last step to take assoc and output csv for graph generation.
Reorganised so tests for each topology can be run separately.  Fixed timeout so UDP tests that fail to transmit any iperf data do not kill the test.  Added zero data for when no ipref data is generated.
Removed multiple test files and readded basicIPv6 test2 dpctl commands.
Upped UDP bandwidth for tests to 2Gb/s, to ensure it is above the theoretical maximum.