Merge Champalimaud updates

Source/Processors/ProcessorGraph.cpp

Source/Processors/ProcessorGraph.h

Source/Processors/RecordNode.cpp

Source/Processors/RecordNode.h

Source/Processors/ResamplingNode.cpp

Source/Processors/ResamplingNode.h

Source/Processors/Serial/ofArduino.cpp

Source/Processors/Serial/ofArduino.h

Source/Processors/Serial/ofConstants.h

Source/Processors/Serial/ofSerial.cpp

Source/Processors/Serial/ofSerial.h

Source/Processors/SignalGenerator.cpp

Source/Processors/SignalGenerator.h

Source/Processors/SourceNode.cpp

Source/Processors/SourceNode.h

Source/Processors/SpikeDetector.cpp

Source/Processors/SpikeDetector.h

Source/Processors/SpikeDisplayNode.cpp

Source/Processors/SpikeDisplayNode.h

Source/Processors/Utilities/Merger.cpp