make gen_report more generic

[satra]

the current option is quite hardcoded to reflect the current usage.

[satra]

now that shap figures are being created, we should generate an html report. one way to do this is to use create a notebook first and then export it as html via nbconvert. the notebook can store interactive plotly or bokeh plots as well.

sections the report should include:

• data summary and viz
  • shapes of data
  • distribution of target variable, i.e. how balanced is the data
  • any grouping information
  • reduced dimensionality plot of inputs (via umap; color coded by target)
  • parallel coordinate plot with feature selection
• classifier comparison output
  • parameter details of each model
  • shap feature information