ConditionMortalityPredictor (condition --> feature matrix --> clinical prediction rule)

[SanthoshBala]

Utility class for generating highly interpretable clinical prediction rules for predicting mortality of a given prediction. This class should mostly be a pipeline class, in that it just stitches together logic from other classes.

The major piece of new business logic will be specifying how to transform the raw ClinicalMortalityMatrix into the transformed matrix for machine learning, based on intuitions about what is actually valuable (e.g. bucketing age, removing Race.post, etc.).

[SanthoshBala]

Completed basic implementation and confirmed that it generates a meaningful report for pneumonia prediction.

Going to close this and open up another task for creating and vetting a bunch of prediction rules.