Update model_eval to emit more useful metrics by default.
Update model_eval to emit more useful metrics by default.

The previous version had a lot of conditional variant plots (Insertions, Deletions, BiAllelic, MultiAllelic) that never proved really useful. In there place we are now emitting Precision and Recall plots.

PiperOrigin-RevId: 179307190

google/deepvariant,google/deepvariant,google/deepvariant