[Backport] Fix issue #13010. Check if product is assigned to current website

[afirlejczyk]

Original Pull Request
#14360

Description

Checking if product is assigne to current website, before displaying "Write a review page".

Fixed Issues (if relevant)

1. Write a Review page works on multistore for products that are not assigned to that store #13010: Write a Review page works on multistore for products that are not assigned to that store

Manual testing scenarios

1. Create an additional Website and Storefront e.g. http://www.store1.com/ and http://www.store2.com/
2. Create a product that is assigned to website 1 only
3. Ensure http://www.store1.com/catalog/product/view/id/1 shows up correctly and http://www.store2.com/catalog/product/view/id/1 throws a 404.
4. Navigate directly to the /review/product/list/id/1 page on store 2 (http://www.store2.com/review/product/list/id/1)
5. Page 404 should be displayed

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

Hi @afirlejczyk. Thank you for your contribution.
Changes from your Pull Request will be available with the upcoming 2.1.15 release.