Create initial inventory of foreign banknotes.
Factorise createAccountIncident to use the same code when using local and foreign currencies.
Create specific methods for foreign currency steps.
Call cleanup step.
Add new sequence for foreign currency. 


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@13974 20353a03-c40f-0410-a6d1-a30d3c3de9de