Minimum Total Order Numbers - Like a Crowdfunder

Similar to a Crowdfunder campaign, but with the idea that there is a minimum total quantity of orders for a particular product (set by the Admin/Shop Manager), where orders are held (and funds not debited) until the total minimum number of orders is reached or exceeded.

So rather than a monetary total to reach, this is a total orders quantity to be reached (as an optional settings on a product basis)

Once the required minimum order is reached/exceeded the Admin/Shop Manager can make the product 'active' and all orders to-date are debited (to go to production etc) and orders can proceed from there.