[IMP] product_expiry: add use_expiration_date

Adds new product field, `use_expiration_date`, to know if user wants to
use expiration date on product. Only accessible when product is tracked.

Also, changes fields' name:
    - product.template:     life_time becomes expiration_time
    - stock.production.lot: life_date becomes expiration_date

Task #1938656