Upgrade the ProductSetGui module

Upgrading from version 1.* to version 2.*

From version 2 we have supported multi-currency. First of all make sure you have migrated the Price module. We have changed a collector dependency to use the PriceProduct module instead of a price. So, please update your code accordingly if you overwrote the core. If you modified the ProductAbstractTableHelper table class, it now receives a different bridge ProductSetGuiToPriceProductFacadeInterface instead of ProductSetGuiToPriceProductInterface.