FINERACT-2325: Disable automatic Interest Refund calculation

fineract-loan/src/main/java/org/apache/fineract/portfolio/loanaccount/api/LoanTransactionsApiResourceSwagger.java

@@ -352,6 +352,8 @@ final class LoanTransactionsApiResourceSwagger {
         @Schema(example = "numberOfInstallments")
         public Integer numberOfInstallments;
         // command=reAge END
+        @Schema(description = "Optional. Controls whether Interest Refund transaction should be created for this refund. If not provided, loan product config is used.", example = "false")
+        public Boolean interestRefundCalculation;
     }
 
     @Schema(description = "PostLoansLoanIdTransactionsResponse")

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

@@ -90,7 +90,7 @@ public interface LoanAccountDomainService {
 
     Pair<LoanTransaction, LoanTransaction> makeRefund(Loan loan, ScheduleGeneratorDTO scheduleGeneratorDTO,
             LoanTransactionType loanTransactionType, LocalDate transactionDate, BigDecimal transactionAmount, PaymentDetail paymentDetail,
-            ExternalId txnExternalId);
+            ExternalId txnExternalId, Boolean interestRefundCalculationOverride);
 
     void updateAndSavePostDatedChecksForIndividualAccount(Loan loan, LoanTransaction transaction);