* add shopper country field

* add migration script

* Update etc/adminhtml/system/payment_methods/local_payment_methods/advanced_options.xml
Co-Authored-By: Alessio Zampatti <alessio.zampatti@adyen.com>

* Update Model/Config/Source/ShopperCountryMode.php
Co-Authored-By: Ángel Campos <angel.campos@adyen.com>

* Update etc/adminhtml/system/payment_methods/local_payment_methods/advanced_options.xml
Co-Authored-By: Ángel Campos <angel.campos@adyen.com>

* Update the migration script

* fix the getAdyenCountryCodeConfigData method

* Update etc/adminhtml/system/payment_methods/local_payment_methods/advanced_options.xml
Co-authored-by: Alessio Zampatti <alessio.zampatti@adyen.com>
Co-authored-by: Ángel Campos <angel.campos@adyen.com>