rename item drop packets

src/packet/messages.rs

@@ -185,13 +185,13 @@ pub struct PlayerFeedMag {
 }
 
 #[pso_message(0x29)]
-pub struct PlayerDropItem {
+pub struct PlayerSplitItemStack {
     item_id: u32,
     amount: u16,
 }
 
 #[pso_message(0x2A)]
-pub struct PlayerDropItem2 {
+pub struct PlayerDropItem {
     unknown1: u16,
     area: u16,
     item_id: u32,