def create_product_reference(name)
      product = project.products_group.create_product_reference(name)
      product_reference = product.identifier
      product
    end
def create_product_reference(name)
      product = project.products_group.create_product_reference(name)
      product_reference = product.identifier
      product
    end
Create a product reference file and add it to the product. This is by
 default added to the 'Products' group.

 @param [String] name of the product reference to add to the product
 @return [Resource] the product created