Add timing tests and baseline classes to compare to.

This style of testing works with nose and compares to
previous code (v1.9) so it gives long term baseline.
Its a step toward v2.0 where base classes will change.

We can't overload this or tests will take too long.
As currently config'd it adds about 5 seconds.

The code also runs on its own and produces a timing report.
  python test_timing.py