Lots of additions and restructuring

TOOHUCardAPI/DTO/PlayerData/PlayerDataSaveCardLevelRequest.cs

@@ -0,0 +1,12 @@
+using Newtonsoft.Json;
+
+namespace TOOHUCardAPI.DTO.PlayerData
+{
+    public class PlayerDataSaveCardLevelRequest : AbstractPlayerTargetedRequest
+    {
+        [JsonProperty("card")]
+        public string CardItemCode { get; set; }
+        [JsonProperty("level")]
+        public int LevelIncrease { get; set; }
+    }
+}