Add statute-based queries

Add statute-based queries to group together violent, nonviolent,
affecting women and drug crimes (and index crimes within each)
to handle cases where an ILCS statute doesn't map to an IUCR code
or the mapping is ambiguous.

Addresses https://github.com/sc3/cook-convictions/issues/83,
https://github.com/sc3/cook-convictions-data/issues/7,
https://github.com/sc3/cook-convictions-data/issues/6