Report additional metrics to asvdb from integration tests

[jperez999]

For the example notebooks in NVTabular that are run as integration tests:

• [ ] The metrics for asvdb that should be captured:
  • [x] Training Time
  • [x] Max AUC (where possible)
  • [ ] validation loss (otherwise)
  • [x] Container Sizes
• [x] must be human readable
• [x] must be simple to understand

Source for the list of metrics: https://docs.google.com/document/d/19wktqCbcR8II0TLMIFckwbCuPTLawLxvKmbmHUnqYtU/edit

[karlhigley]

Waiting on rework of NVTabular notebooks