#1076 Change Current to Preferred Vendor for price list creation

[mckayERP]

See https://sourceforge.net/projects/adempiere/forums/forum/610548/topic/4950191

Modify the Product Purchasing tab to identify the Preferred vendor rather than the current vendor and include a parameter on the price list creation process to include only the preferred vendor.

Add logic to ensure that there is only one preferred vendor per product.

Modify the business partner vendor tab to include a process to set that business partner as the preferred vendor on all associated products and deselect any other business partners. Add the same process to the requisition process where the winner is selected.

[Jan Thielemann]

Hi there. We found out that we need a very similar behaviour. I already refactored the M_PriceList_Create process and we will contribute it as soon as possible. Currently i am writing a tutorial for our new functionality. When i am done you can take a look at it and if it is matching your feature request, we will contribute it.

Kind Regards
Jan Thielemann, evenos GmbH

[jmpiloq]

See https://adempiere.atlassian.net/browse/ADEMPIERE-169

Kind regards, jmpiloq