FINERACT-2498: Add GROUP as a Guarantor Type to Support Group Savings Accounts as Loan Collateral

fineract-loan/src/main/java/org/apache/fineract/portfolio/loanaccount/guarantor/domain/GuarantorType.java

@@ -25,7 +25,8 @@ public enum GuarantorType {
 
     CUSTOMER(1, "guarantor.existing.customer"), //
     STAFF(2, "guarantor.staff"), //
-    EXTERNAL(3, "guarantor.external"); //
+    EXTERNAL(3, "guarantor.external"), //
+    GROUP(4, "guarantor.existing.group"); //
 
     private final Integer value;
     private final String code;
@@ -90,4 +91,8 @@ public enum GuarantorType {
         return this.value.equals(GuarantorType.STAFF.getValue());
     }
 
+    public boolean isGroup() {
+        return this.value.equals(GuarantorType.GROUP.getValue());
+    }
+
 }