The new base tables produced by `sarif-extract-multi` are
artifacts
codeflows
kind_pathproblem
kind_problem
project
relatedLocations
rules
The revised table overview is in the jupyter notebook
scripts/multi-table-overview.ipynb
The file notes/typegraph-multi-with-tables.pdf illustrates what original (sarif)
tables are used to form the base (derived) tables.
