However many images there are on a Variation, include them all

Using the StyleCode attribute to link Variations in Merchantry means the SingleFeed will **not** include the parent product. Merchantry will automatically generate a parent product. 

As a result, only one product image is making it into the portal. We want more than one product image. We cannot pass them on the parent (because the parent wont be included) so we must pass them on the Variations.