implement GetWallpaperInventory

lobby settings work now

nksrv/LobbyServer/Msgs/User/GetWallpaperInventory.cs

@@ -0,0 +1,22 @@
+using nksrv.Utils;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace nksrv.LobbyServer.Msgs.User
+{
+    [PacketPath("/user/getwallpaperinventory")]
+    public class GetWallpaperInventory : LobbyMsgHandler
+    {
+        protected override async Task HandleAsync()
+        {
+            var req = await ReadData<ReqGetWallpaperInventory>();
+
+            var r = new ResGetWallpaperInventory();
+
+            WriteData(r);
+        }
+    }
+}