Promotion Pro: Auto discounts, free ship, gifts, etc. Module 1.3.1

Update compatibility with PrestaShop 8.2.0

Module improvement

• Module improvement

• Module improvement

• New option for promoting discount rule: "Select display group"

• Edit Copyright & author name
• New feature: Allow selecting Currency and included/excluded tax when setting up discount amount value

• Automatically recalculate the product promotion price in case the product has tax applied

• Change description of the module