Add test for whether an empty stack deserialises to proper size
Add test for whether an empty stack deserialises to proper size

It must be padded with empty containers. The test currently fails, and we concluded that we won't fix it as part of this refactor. We'll refactor this later and put it on skip until then to indicate a todo.

Contributes to issue CURA-3497.

Curahelper/Cura,fieldOfView/Cura,hmflash/Cura,ynotstartups/Wanhao,ynotstartups/Wanhao,fieldOfView/Cura,hmflash/Cura,Curahelper/Cura