Keep track of atomtypes that don't match anything so we can reject more quickly.
Keep track of atomtypes that don't match anything so we can reject more quickly.

open-forcefield-group/smarty,open-forcefield-group/smarty,open-forcefield-group/openforcefield,openforcefield/openff-toolkit,open-forcefield-group/openforcefield,open-forcefield-group/smarty,open-forcefield-group/openforcefield,openforcefield/openff-toolkit