Register registers stats family to default stats registry familyName is a unique family name for the stats opts can contain logExporter etc.

Unregister unregisters the family from DefaultRegistry.

WithLogExporter registers Family with the LogExporter.

DefaultRegistry will be used to register all the MO Dev Stats.

Counter represents a combination of global & current_window counter.

Family contains attributed related to a DevStats Family.

Registry holds mapping between FamilyName and Family.