Credit for Stock Return: separate steps for Credit Note and Restock

When returning Stock for Credit, the Restock is 'tied to' the Credit Note, so when authorising the Credit note for the Customer, it also authorises the Restock to the original Bin location it was picked from on the Fulfilment.

However- just like on a Sales order where the Fulfilment and Invoice are processed by different departments in the business and at different stages, the same happens for Returned Stock. 

Therefore the Restock function needs to operate independently to the Credit Note - basically the reverse order of an SO Fulfilment.