* Add group type, group_type_index
* Raise an error when handling unsupported properties in CH
* Improve repr
* Fix is_superset function
This was previously broken - sorting and zipping doesn't really work for
this intent.
* Add group_type_index to analysis results
* Add `group_types_to_query`
* Minor typing fixes
* Create groups tables in tests
* Simple first filter by groups query
* isort
* Use snapshot testing in event_query tests, add test for groups
