Lots of additions and restructuring

TOOHUCardAPI/Data/Models/ModelBuilders/CardLevelModelBuilder.cs

@@ -0,0 +1,15 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace TOOHUCardAPI.Data.Models.ModelBuilders
+{
+    public class CardLevelModelBuilder : IModelBuilder
+    {
+        public ModelBuilder BuildModel(ModelBuilder builder)
+        {
+            EntityTypeBuilder<CardLevel> cardLevelBuilder = builder.Entity<CardLevel>();
+            cardLevelBuilder.HasKey(cl => new {cl.UserSteamId, cl.CardItemCode});
+            return builder;
+        }
+    }
+}