Add additional params to cpp init request

Craftgate/Request/InitCheckoutPaymentRequest.cs

@@ -33,7 +33,11 @@ public class InitCheckoutPaymentRequest
         public long? Ttl { get; set; }
         public IList<CustomInstallment> CustomInstallments { get; set; }
         public IList<PaymentItem> Items { get; set; }
+<<<<<<< Updated upstream
         public FraudCheckParameters FraudParams { get; set; }
 
+=======
+        public Dictionary<string, object> AdditionalParams { get; set; }
+>>>>>>> Stashed changes
     }
 }