merge SimulationResult -> Datafield

Device/IO/DiffUtil.cpp

Device/IO/DiffUtil.h

Device/IO/IOFactory.cpp

GUI/Model/Data/DataItemUtil.cpp

GUI/Model/Data/DataItemUtil.h

GUI/Model/Job/JobItem.cpp

GUI/Model/Job/JobItem.h

GUI/Support/Data/JobWorker.cpp

GUI/Support/Data/JobWorker.h

GUI/View/Fit/GUIFitObserver.cpp

Sim/Fitting/FitObjective.cpp

Sim/Fitting/FitObjective.h

Sim/Fitting/ObjectiveMetric.cpp

Sim/Fitting/SimDataPair.cpp

Sim/Fitting/SimDataPair.h

Sim/Simulation/DepthprobeSimulation.cpp

Sim/Simulation/DepthprobeSimulation.h

Sim/Simulation/ISimulation.cpp

Sim/Simulation/ISimulation.h

Sim/Simulation/OffspecSimulation.cpp