post https://api-us.bluestonepim.com/pim/products/templates/
Creates a new product template in the system by "marking"/referencing a specified product as being a template.
Note: The template feature is referencing the product. This means that updates on the template product
will be copied to any new products created based on this template. Existing products created from this
template are unaffected by any later changes. A product can only be "marked"/referenced as template once, an
error will be returned if one tries to create a new template for a product that is already "marked"/referenced as a template.
For more detailed information on creating product templates in Bluestone PIM, refer
to the Product templates documentation.