procedure to backport version 3 to 8.0 series

[sbidoul]

mis_builder latest features (since version 2) are only available for Odoo series 9.0+.

If you are interested in backporting it to the 8.0 series, the following procedure should be the simplest:

1. create a module account_value_date in OCA/account-financial-tools that adds a value_date computed field to account.move.line (value_date being equal to date if with the account.period, else the last day of the period)
2. start from the 9.0 branch and replace date by value_date in aep.py and replace date.range by account.period everywhere else
3. Preserve 8.0 AEP algorithm for initial balance calculation based on opening periods.
4. Update the test suite to reintroduce account.period where necessary.
5. test and fix all other details which hopefully should not be too numerous

[github-actions]

There hasn't been any activity on this issue in the past 6 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 30 days.
If you want this issue to never become stale, please ask a PSC member to apply the "no stale" label.