Manage product and variants through inheritance and overridden values.

When a product is cloned we add a cloneId to the product.
When a variant is cloned, we add a cloneId to the variant.

When you edit a product or variant attribute we're essential "overriding" this attribute if the object is a cloned object.

• Add functionality to reset the clones back / change to new value set in the parent hierarchy.
• Add functionality to ask change / edit only values that have not been changed in children
• Optionally override even changed/edited child values
• Update from anywhere in the hierarchy
• UI / UX to make this hierarchy visible / understandable.

The motivation to do this is for super fast mass product editing / updating.