release raiwidgets 0.9.1

v0.9.1

• educational materials
• new features
• breaking changes
  • error report in erroranalysis package had json_tree renamed to tree and json_matrix renamed to matrix
• bug fixes
  • fix econML inputs
  • add categorical feature to causal whatif
  • fix counterfactual panel scroll bar
  • round precision in causal analysis tables
  • fix calculating feature importances after error report due to dataframe on analyzer being modified
• other
  • dump information about the most time consuming tests