Sale automatic workflow ignore exception

This module works together with the automatic sale workflow and the sale exception rules. It adds one new option on each sale workflow process: a checkbox called "ignore exception when confirm".

• The checkbox appears on the sale workflow process form, right before the "send order confirmation mail" option, and is only visible when the process is set to validate orders automatically.
• When this option is ticked, orders handled by that workflow are confirmed even if they would normally be stopped by a sale exception.
• Technically, the confirmation is done with a special context flag; when an order is confirmed with that flag, the order is marked to ignore its exceptions before the normal confirmation runs.
• The automatic workflow job that validates sale orders checks the option on the order's workflow process and applies the flag only for those processes.

It touches the sale order, the sale workflow process and the automatic workflow job. No new menus or reports are added; the only visible change is the new checkbox on the workflow process screen.