adding FetchbillByBillId

src/main/java/com/billpaymentservice/bbps/dto/InterchangeFeeDetail.java

@@ -0,0 +1,17 @@
+package com.billpaymentservice.bbps.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class InterchangeFeeDetail {
+    private String interchangeFeeDetId;
+    private long tranAmtRangeMax;
+    private long tranAmtRangeMin;
+    private double percentFee;
+    private double flatFee;
+    private String effctvFrom;
+
+    // getters and setters
+}