M2 Baseline Models + Visualizations

[JakeColor]

• demonstrates comet.ml integration
• trains baseline logreg classifier
• framework for generating & saving classifier performance plots
• implements all four performance plots

[TimkLee]

just one comment. Thanks so much for paving the way for the next experiments.

I was curious as well, but it works. In this case, my understanding is that if there are any nulls across the columns, a row would be removed.