Add pagination sort by column

components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/PaginationRequest.java

@@ -174,6 +174,14 @@ public class PaginationRequest {
         this.filter = filter;
     }
 
+    public List<String> getSortColumnList() { return sortColumnList; }
+
+    public void setSortColumnList(List<String> sortColumnList) { this.sortColumnList = sortColumnList; }
+
+    public List<String> getSortTypeList() { return sortTypeList; }
+
+    public void setSortTypeList(List<String> sortTypeList) { this.sortTypeList = sortTypeList; }
+
     @Override
     public String toString() {
         return "Device type '" + this.deviceType + "' Device Name '" + this.deviceName + "' row count: " + this.rowCount