Create loan product with variable installment

1. Navigate to create new loan product page
2. Fill the mandatory fields
3. Set Interest type as Declining Balance
4. Check the "Can configure variable installments" check-box
5. Set values for Maximum Gap, Minimum Gap and Minimum Installment Amount with valid values.
5. Click on preview.
6. Verify if the values values entered for the Variable Installment data are persisted in the summary.
6. Submit the load product.

1. View loan product details contains values entered for the Variable Installment data. If Minimum Gap and Minimum Installment Amount are populated with 0 or blank, they should be persisted as "NA" in loan details page
2. Create a loan account for the Loan Product created above, verify if the values for the Variable Installment entered while Loan Product creation are persisted in Review Installment Page with corresponding fields.