Adds hostReference field to the Cancel and Refund model (#160)

* Adds `refundHostReference` field to the Refund model

* Adds `cancelHostReference` field to the Cancel model

src/main/java/com/iyzipay/model/Cancel.java

@@ -15,6 +15,7 @@ public class Cancel extends IyzipayResource {
     private String connectorName;
     private String authCode;
     private String hostReference;
+    private String cancelHostReference;
 
     public static Cancel create(CreateCancelRequest request, Options options) {
         String path = "/payment/cancel";
@@ -72,4 +73,12 @@ public String getHostReference() {
     public void setHostReference(String hostReference) {
         this.hostReference = hostReference;
     }
+
+    public String getCancelHostReference() {
+        return cancelHostReference;
+    }
+
+    public void setCancelHostReference(String cancelHostReference) {
+        this.cancelHostReference = cancelHostReference;
+    }
 }

src/main/java/com/iyzipay/model/Refund.java

@@ -16,6 +16,7 @@ public class Refund extends IyzipayResource {
     private String connectorName;
     private String authCode;
     private String hostReference;
+    private String refundHostReference;
 
     public static Refund create(CreateRefundRequest request, Options options) {
         String path = "/payment/refund";
@@ -81,4 +82,11 @@ public String getHostReference() {
     public void setHostReference(String hostReference) {
         this.hostReference = hostReference;
     }
+    public String getRefundHostReference() {
+        return refundHostReference;
+    }
+
+    public void setRefundHostReference(String refundHostReference) {
+        this.refundHostReference = refundHostReference;
+    }
 }