A new rule for automatic reconciliation and a cron

 This allows for credit lines to use another bank statement as reference, and do a reconciliation with all its lines (debit AND credit, as the commission line can be created in that statement as well).

The main goal is to allow to create "bank lines" for when the payment for credit cards arrives, and reconcile it with a previous bank statement import of those cards.


Please ask @mdietrichc2c it is a port of his MP from Launchpad