Product/User/Location: also show the list of proofs

[raphodn]

What

On each product/user/location detail page, we already list all of the prices.
But we often have proofs attached to these items.

How

Tab ? Stat button with link ? In the action menu ?

Todo

• Product detail page: list of all of the product's proofs
  • tricky because there is no link between product & proof, it goes through the price table)
• User detail page: list of all of the user's proofs
  • already visible on your own dashboard
• Location detail page: list of all of the location's proofs