Option to close (partially delivered) Subcontracting Order

[ophl55]

Is your feature request related to a problem? Please describe.
As a Purchase Order sometimes has to be closed manually the same applies to the Subcontrating Order.
For instance this might be the case when the order can or should not be delivered completly for any reason.
Currently you can close the PO. The SCO stays still open until completely delivered. The items are still shown as "to receive" in the reports and you can even submit further SCRs against the SCO.

Describe the solution you'd like
Close the SCO automatically in case the PO gets closed by the User. Also reopen it automatically in case the PO gets reopened by the user.

Describe alternatives you've considered
Add the option to close the SCO manually as it is done for the PO. Also add the option to reopen the SCO if closed.

Additional context
Minor error observed:
The status of the SCO is set to "Closed" by the code in a specific situation.

erpnext/erpnext/subcontracting/doctype/subcontracting_order/subcontracting_order.py

Line 292 in b562b4c

status = "Closed"

The status "Closed" is not defined for the SCO in the subcontracting_order.json. https://github.com/frappe/erpnext/blob/b562b4cf99e68108a0d7ba3a90e60ef3d7d01b0f/erpnext/subcontracting/doctype/subcontracting_order/subcontracting_order.json#L373C4-L373C123

[ophl55]

@s-aga-r can you please check?

These are the same issues as described in the comments of your commit: b023e5d