fixed bug in getXYZ_IFFT, where zwidth=xwidth=ywidth
fixed bug in getXYZ_IFFT, where zwidth=xwidth=ywidth

markusrademacher/datahandling,AshleySetter/datahandling,AshleySetter/datahandling,AshleySetter/optoanalysis,AshleySetter/optoanalysis,markusrademacher/datahandling