Add PaymentVariantsWindow

Elwig/Helpers/AppDbContext.cs

@@ -51,6 +51,7 @@ namespace Elwig.Helpers {
         public DbSet<OverUnderDeliveryRow> OverUnderDeliveryRows { get; private set; }
         public DbSet<AreaComUnderDeliveryRowSingle> AreaComUnderDeliveryRows { get; private set; }
         public DbSet<MemberDeliveryPerVariantRowSingle> MemberDeliveryPerVariantRows { get; private set; }
+        public DbSet<CreditNoteRowSingle> CreditNoteRows { get; private set; }
 
         private readonly StreamWriter? LogFile = null;
         public static DateTime LastWriteTime => File.GetLastWriteTime(App.Config.DatabaseFile);