rename INode fcts -> nodeChildren, nodeOffspring

Core/Simulation/ISimulation.cpp

Core/Simulation/ISimulation.h

Device/Beam/Beam.cpp

Device/Beam/Beam.h

Device/Detector/IDetector.cpp

Device/Detector/IDetector.h

Device/Instrument/Instrument.cpp

Device/Instrument/Instrument.h

Device/Resolution/ConvolutionDetectorResolution.cpp

Device/Resolution/ConvolutionDetectorResolution.h

GUI/Model/Session/SessionItem.cpp

GUI/Model/Session/SessionItem.h

GUI/View/Projection/ProjectionsPlot.cpp

GUI/View/Projection/SaveProjectionsAssistant.cpp

Param/Node/INode.cpp

Param/Node/INode.h

Param/Node/NodeUtils.h

Sample/Aggregate/Interference1DLattice.cpp

Sample/Aggregate/Interference1DLattice.h

Sample/Aggregate/Interference2DLattice.cpp