handlers → registry Relation

File in src/internal/handlers	Includes file in src/internal/registry
sf_spelleffect_handlers.cpp	spell_data_registries / sf_spelleffect_registry.h
sf_spellrefresh_handlers.cpp	sf_mod_registry.h
sf_spelltype_handlers.cpp	sf_registry.h
sf_spelltype_handlers.cpp	spell_data_registries / sf_spelltype_registry.h