add new module purchase_requisition_delivery_address

This is an extraction of dest_address_id field from module
purchase_requisition_bid_selection
I know this onchange is just extracted from another module that could have been ported by me, but I am not sure searching a warehouse with partner_id = the destination address and taking any picking type of that warehouse is a useful choice. We could instead look for any "dropshipping-type" picking type, i.e. a picking type that goes from a supplier location to a customer location. That is done here:

https://github.com/OCA/purchase-workflow/pull/46/files#diff-02d586cf1b8cef18fe6ed0146a6af1d8R25

What do you think about that?