Fixed field ids coming in the response as value to give document response

src/main/java/net/gepafin/tendermanagement/model/response/CriteriaMappedField.java

@@ -1,10 +1,11 @@
 package net.gepafin.tendermanagement.model.response;
 
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 import lombok.Data;
 
 @Data
 public class CriteriaMappedField {
     private String id;
     private String fieldLabel;
-    private String fieldValue;
+    private Object fieldValue;
 }