Add ItemType and ItemSubType enums; update ProcessingSettings and Product classes (#501)

Author: armando-rodriguez-cko

src/CheckoutSdk/Payments/ProcessingSettings.cs

@@ -79,5 +79,12 @@ public class ProcessingSettings
 
         [JsonProperty(PropertyName = "senderInformation")]
         public string SenderInformation { get; set; }
+        
+        public CardType? CardType { get; set; }
+        
+        public string AffiliateId { get; set; }
+        
+        public string AffiliateUrl { get; set; }
+        
     }
 }

src/CheckoutSdk/Payments/Request/ItemSubType.cs

@@ -0,0 +1,23 @@
+using System.Runtime.Serialization;
+
+namespace Checkout.Payments.Request
+{
+    public enum ItemSubType
+    {
+        [EnumMember(Value = "blockchain")]
+        Blockchain,
+            
+        [EnumMember(Value = "cbdc")]
+        Cbdc,
+        
+        [EnumMember(Value = "cryptocurrency")]
+        Cryptocurrency,
+        
+        [EnumMember(Value = "nft")]
+        Nft,
+        
+        [EnumMember(Value = "stablecoin")]
+        Stablecoin,
+            
+    }
+}

src/CheckoutSdk/Payments/Request/ItemType.cs

@@ -0,0 +1,16 @@
+using System.Runtime.Serialization;
+
+namespace Checkout.Payments.Request
+{
+    public enum ItemType
+    {
+        [EnumMember(Value = "digital")]
+        Digital,
+        
+        [EnumMember(Value = "discount")]
+        Discount,
+        
+        [EnumMember(Value = "physical")]
+        Physical,
+    }
+}

src/CheckoutSdk/Payments/Request/Product.cs

@@ -2,6 +2,9 @@
 {
     public class Product
     {
+        public ItemType Type { get; set; }
+        
+        public ItemSubType SubType { get; set; }
         public string Name { get; set; }
 
         public long? Quantity { get; set; }