POS Brazil Version 4.39.0

Scale support has been added for wrapper.
Payment modal is now waiting for heavy calculations to finish.
(fix) Wrapper payment integration now records REFUND transactions as negative payments.
(W**) Prevent default customer from having membership product in cart
Prevent the situation where the user is prompted for entering return reasons for a non-refundable product.
[W**] Display a confirmation if/when DSC membership product is attempted to be returned.
Added AWS RUM support to POS Brazil.
Fiscal integration RUT only allows one character after the "-".
G. fiscal integration now accepts lower or upper case letter "K".
Updated links for release notes and erply manuals in POS header.
Shopping Cart Total Discount respects "Do not show price list as a discount in shopping cart rows" setting.