Lunch Support (#1373)

* PacketSetUpLunchBoxWidgetRsp

* HandlerSetUpLunchBoxWidgetReq

src/main/java/emu/grasscutter/server/packet/recv/HandlerSetUpLunchBoxWidgetReq.java

+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.SetUpLunchBoxWidgetReqOuterClass;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketSetUpLunchBoxWidgetRsp;
+
+@Opcodes(PacketOpcodes.SetUpLunchBoxWidgetReq)
+public class HandlerSetUpLunchBoxWidgetReq extends PacketHandler {
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        var req
+                = SetUpLunchBoxWidgetReqOuterClass.SetUpLunchBoxWidgetReq.parseFrom(payload);
+
+        session.send(new PacketSetUpLunchBoxWidgetRsp(req.getLunchBoxData()));
+    }
+}

src/main/java/emu/grasscutter/server/packet/send/PacketSetUpLunchBoxWidgetRsp.java

+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.net.packet.BasePacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.LunchBoxDataOuterClass;
+import emu.grasscutter.net.proto.SetUpLunchBoxWidgetRspOuterClass;
+
+public class PacketSetUpLunchBoxWidgetRsp extends BasePacket {
+
+    public PacketSetUpLunchBoxWidgetRsp(LunchBoxDataOuterClass.LunchBoxData lunchBoxData) {
+        super(PacketOpcodes.SetUpLunchBoxWidgetRsp);
+        var rsp
+                = SetUpLunchBoxWidgetRspOuterClass.SetUpLunchBoxWidgetRsp.newBuilder();
+        rsp.setLunchBoxData(lunchBoxData);
+
+        setData(rsp.build());
+    }
+}