* [Feature] Teach npcs how to cast sacrifice
* [Feature] Teach npcs how to cast sacrifice
- Remove the hardcoded limit preventing npcs from casting sacrifice. The
npc will receive as loot an emerald essence as expected.
* Update client.cpp
* Update client_packet.cpp
* Update spell_effects.cpp
* rename Client::SacrificeCaster to Client::sacrifice_caster_id
