Now supports saving card groups, this is probably the ugliest code ive ever written but anything to avoid 20 cardgroup properties. we should see if there's a better way, it could probably be a lot cleaner

TOOHUCardAPI/Data/Models/EncodedCardGroup.cs

@@ -1,12 +1,14 @@
 using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 
 namespace TOOHUCardAPI.Data.Models
 {
     public class EncodedCardGroup
     {
         [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         public int Id { get; set; }
-        public int CardGroupNumber { get; set; }
+        public string GroupKey { get; set; }
         public string EncodedString { get; set; }
     }
 }