[penalty] Add update script for first event on penalty accrual
[penalty] Loan penalty accrual event and method
[penalty] Interest accrual update script
[penalty] Finish interest accrual update script for active loans
[penalty] Interest accrual upd script
[penalty] Last interest accrual event date
[penalty & interest] Add method in LoanServices
[penalty] Try to restore old changes
[penalty & interest] Check number of days >30

>30 interest=0
<30 interest=1/30
==30 or ==lastDay interest=interest-allAccruedInterestBefore
[penalty & interest] Change type of read interest to decimal

Now it seems to work)))
[penalty & interest] Show in event tab
Merge branch 'penalty' of https://github.com/PavelBastov/opencbs into penalty
Merge branch 'penalty'