Packs "Totalized in main product" and "Non Detailed" don't include product list price

[bruno-zanotti]

Module

product_pack - sale_product_pack - website_sale_product_pack

Describe the bug

When you get the price of a pack "Totalized in main product" or "Non Detailed" the result is only the sum of the components and list price of the product pack is ignored. This isn't the behavior in other pack types making the modules more confusing to use or implement.

To Reproduce

Affected versions: 14.0, 15.0, 16.0

Steps to reproduce the behavior:

1. Go to runboat or install the modules with demo data.
2. Create a sale order and add the product "Pack CPU (Detailed - Totalized Components Price)"
3. The price you will get is: $2,662.50
4. When the expected price should be: $30.75 (list pack price) + $2,662.50 (sum of components) = $2,693.25

For example, if you add the exact same pack but with the setting "Detailed per component" the total price will be $2,693.25

Expected behavior

1. Doesn't matter the type of the pack if the components and the list price is the same should get the same price.
2. The "Totalized in main product" and "Non Detailed" should add the list price to the pack total price (even if you don't want it, it can be set in 0)

Screenshot of a sale quotation from runboat

[bruno-zanotti]

After the price refactor #149 is merged, this issue should be solved with #164