Implement setting headicons/skins

src/main/java/emu/nebula/server/handlers/HandlerPlayerHeadIconSetReq.java

@@ -0,0 +1,24 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.PlayerHeadiconSet.PlayerHeadIconSetReq;
+import emu.nebula.net.HandlerId;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.player_head_icon_set_req)
+public class HandlerPlayerHeadIconSetReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse req
+        var req = PlayerHeadIconSetReq.parseFrom(message);
+        
+        // Set head icon
+        boolean result = session.getPlayer().editHeadIcon(req.getHeadIcon());
+        
+        // Encode and send
+        return session.encodeMsg(result ? NetMsgId.player_head_icon_set_succeed_ack : NetMsgId.player_head_icon_set_failed_ack);
+    }
+
+}