[PHEE-636] Fix operation app GET transfers API 500 error. (#100)

Author: logoutdhaval

src/main/java/org/apache/fineract/operations/TransferStatus.java

@@ -4,5 +4,6 @@ public enum TransferStatus {
     COMPLETED,
     FAILED,
     IN_PROGRESS,
-    UNKNOWN
+    UNKNOWN,
+    EXCEPTION
 }