Also export Smart Objects correctly

When moving some existing layers to a SmartObject, all the export options are preserfed, but when trying to export the PSD file containing the SmartObject all settings within the SmartObject itself are ignored.

e.g. The SmartObject should be exported as Component, which is defined in the main.psd file. Within the SmartObject a specific layer should also be exported as Component, but this setting is ignored and still exported as a child.