Expose "paymentDetails" from Supplier -> Locations

[Magnus Johnsen]

Currently it is not possible to GET/PUT/POST payment details for suppliers.

This includes:

• Payment Instructions
• Account used for payment
• Payment Method

This is needed to be able to handle multiple payment instructions for suppliers depending on the location.

As of right now, this needs to be handled manually in the ERP UI, which hinders the workflow when integration to a 3rd party application that handles supplier/payment creations.

[Magnus Johnsen]

This is currently in the backlog.