rm INodeVisitor and the related function INode::accept

Core/Background/ConstantBackground.h

Core/Background/PoissonNoiseBackground.h

Core/Simulation/DepthProbeSimulation.h

Core/Simulation/GISASSimulation.h

Core/Simulation/OffSpecularSimulation.h

Core/Simulation/SpecularSimulation.h

Device/Beam/Beam.h

Device/Beam/FootprintGauss.h

Device/Beam/FootprintSquare.h

Device/Detector/RectangularDetector.h

Device/Detector/SpecularDetector1D.h

Device/Detector/SphericalDetector.h

Device/Instrument/Instrument.h

Device/Pol/PolFilter.h

Device/Resolution/ConvolutionDetectorResolution.h

Device/Resolution/ResolutionFunction2DGaussian.h

Param/Distrib/Distributions.h

Param/Node/INode.h

Param/Node/INodeVisitor.h

Sample/Aggregate/Interference1DLattice.h