new addon purchase_requisition_auto_rfq_bid_selection

bridge module between purchase_requisition_auto_rfq and
purchase_requisition_bid_selection


I suggest to add something like:

Specifically, purchase_requisition_auto_rfq allows to create automatically RFQs for a tender, purchase_requisition_bid_selection distinguishes between bids and rfqs. This bridge module takes care that automatically generated documents are either bids of RFQs depending on the mode of the tender.