[Loot] Remove from shared memory, simplification (#3988)

* First pass of pulling loot out of shared memory, functional

* More code cleanup

* More cleanup

* More cleanup

* More cleanup

* Add loot reload type

* Reload, logging

* Update npc.h

* Cleanup

* Logging, don't load attempt to load loottable id 0

* Update worldserver.cpp

* Update client.cpp

* Update zone_loot.cpp

* PR feedback

* Update zone.cpp

* Memory leak suggestion

* Update CMakeLists.txt

* Post rebase issues

zone/merc.cpp

@@ -4647,7 +4647,7 @@ void Merc::UpdateEquipmentLight()
 	}
 
 	uint8 general_light_type = 0;
-	for (auto iter = itemlist.begin(); iter != itemlist.end(); ++iter) {
+	for (auto iter = m_loot_items.begin(); iter != m_loot_items.end(); ++iter) {
 		auto item = database.GetItem((*iter)->item_id);
 		if (item == nullptr) { continue; }