text: Title: Create target package for supervised target visualizers
  Body: For supervised machine learning, there is some independent analysis that must be conducted on the target vector; for example label encoding, "bucketization", etc. 
  
  For visualizers:
  
  - move the class balance here without requiring a model, fit, or score 
  - perform detection of sequential or categorical data (and associated colors) 
  - plot feature/target correlations in this package 