When debugging a database, it's sometimes desirable to neutralize it to
avoid undesired side effects like sending emails.
This commit adds a generic method `_neutralize` on models to neutralize
the current database. This method has to be overridden by modules models
that needs to be neutralized.
A new CLI command `neutralize`is now available that will permit to
neutralize a database from the command line before starting
investigations.
Pay attention that the neutralize operation cannot be reversed and should
only be used on a database copy.
Task id: 1818795
Part-of: odoo/odoo#67825
Christophe Monniez
152310fe26