Update license headers

Manage voucher type refund in form, fix quite a few bugs related to vouchers, Negative refund due to voucher is an error which is now detected by tests, in the BO the javascript prevents this behaviour

Add two fields for total_refunded in OrderDetail and use them instead of OrderSlip::getProductSlipResume which is now considered deprecated, Refacto order map selector into multi depth object

Reintegrate partial refund, Create js component for cancel product, Limit refund max value based on quantity and price of refunded products, optional credit slip for partial refund, manage product_quantity_reinjected update

Update SwiftMailer
Use v4.0.1 of prestashop/translationtools-bundle
Use fromHtml instead of CssToAttributeConverter::__construct

Create dedicated template and form type for edit row, little refacto of OrderProductEdit to make it cleaner, fix a few bugs related to edition