This commit allows the user to select multiple products from
a product list view and to create a Stock Request Order with
an action. If the user selects templates, all of those templates'
variants will be added to the order.
This is useful as it allows the user to filter products beforehand
based on their stocks, and to create a request order for all
those products whose stock is too low.
- Error with the sequence number.
- Visible texts that should be in uppercases.
- order_id should only be visible if group_stock_request_order
option is enabled.
- adds more tests
- adds consistency between models company-wise
