[Quest API] Add EVENT_DROP_ITEM_CLIENT to Perl/Lua (#2869)

* [Quest API] Add EVENT_DROP_ITEM_CLIENT to Perl/Lua

- Add `EVENT_DROP_ITEM_CLIENT`, exports `$quantity,` $item_name`, `$item_id`, `$spell_id`, `$slot_id`, and `$item`.

- Add `event_drop_item_client`, exports `e.quantity`, `e.item_name`, `e.item_id`, `e.spell_id`, `e.slot_id`, and `e.item`.

* Update inventory.cpp

* Update inventory.cpp

* Update lua_general.cpp

* Update inventory.cpp

zone/lua_parser_events.h

@@ -707,6 +707,15 @@ void handle_player_target_change(
 	std::vector<std::any> *extra_pointers
 );
 
+void handle_player_drop_item(
+	QuestInterface *parse,
+	lua_State* L,
+	Client* client,
+	std::string data,
+	uint32 extra_data,
+	std::vector<std::any> *extra_pointers
+);
+
 // Item
 void handle_item_click(
 	QuestInterface *parse,