FINERACT-1981: Progressive Loan schedule handling - Reschedule installment (Extend repayment period)

[somasorosdpc]

Description

Describe the changes made and why they were made.

Ignore if these details are present on the associated Apache Fineract JIRA ticket.

Checklist

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[adamsaghy]

@somasorosdpc Please squash your 2 commits! ;)

[adamsaghy]

@somasorosdpc Please put back Rustam E2E tests ;)