Lots of additions and restructuring

TOOHUCardAPI/Data/Models/CardLevel.cs

@@ -0,0 +1,10 @@
+namespace TOOHUCardAPI.Data.Models
+{
+    public class CardLevel
+    {
+        public string UserSteamId { get; set; }
+        public string CardItemCode { get; set; }
+        public Card Card { get; set; }
+        public int Level { get; set; }
+    }
+}