DTOs for index mostly done, doing DB models

SVSim.EmulatedEntrypoint/Models/Dtos/ClassExp.cs

@@ -0,0 +1,16 @@
+using MessagePack;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos;
+
+[MessagePackObject]
+public class ClassExp
+{
+    [Key("level")]
+    public int Level { get; set; }
+    [Key("necessary_exp")]
+    public int NecessaryExp { get; set; }
+    [Key("diff_exp")]
+    public int DiffExp { get; set; }
+    [Key("accumulate_exp")]
+    public int AccumulateExp { get; set; }
+}