añadido Purchase Order Product Recommendation

purchase_order_product_recommendation/readme/USAGE.rst

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+To use this module, you need to:
+
+#. Create a new purchase order.
+#. Assign its supplier.
+#. Press *Recommended Products* button.
+#. Set or adjust hinted quantities to order.
+#. Press *Accept*.
+
+The wizard filters products those with supplier infos set for the current order
+supplier. Then it computes how many times those products have been delivered to
+customer locations, and finally it makes a simple estimation of how many
+quantites would be necesary to order given the forcasted stock and the computed
+demand.
+
+If you want to constrain results to only some categories, you can also select
+them in the wizard.
+
+If you have multiple warehouses, you can also constrain the recommendations to
+the deliveries of specific ones.