Boxes : Fix Coding rules, modernize & lisibility

...isualization/src/algorithms/ovpCAlgorithmLevelMeasure.cpp

...-visualization/src/algorithms/ovpCAlgorithmLevelMeasure.h

...ualization/src/box-algorithms/ovpCBoxAlgorithmErpPlot.cpp

...isualization/src/box-algorithms/ovpCBoxAlgorithmErpPlot.h

...ation/src/box-algorithms/ovpCBoxAlgorithmLevelMeasure.cpp

...ization/src/box-algorithms/ovpCBoxAlgorithmLevelMeasure.h

...ithms/ovpCBoxAlgorithmP300IdentifierCardVisualization.cpp

...orithms/ovpCBoxAlgorithmP300IdentifierCardVisualization.h

...algorithms/ovpCBoxAlgorithmP300MagicCardVisualization.cpp

...x-algorithms/ovpCBoxAlgorithmP300MagicCardVisualization.h

...x-algorithms/ovpCBoxAlgorithmP300SpellerVisualization.cpp

...box-algorithms/ovpCBoxAlgorithmP300SpellerVisualization.h

...algorithms/ovpCSignalDisplay/ovpCSignalChannelDisplay.cpp

...x-algorithms/ovpCSignalDisplay/ovpCSignalChannelDisplay.h

...ox-algorithms/ovpCSignalDisplay/ovpCSignalDisplayView.cpp

...ocessing/simple-visualization/src/ovpCBottomTimeRuler.cpp

...rocessing/simple-visualization/src/ovpCBufferDatabase.cpp

.../processing/simple-visualization/src/ovpCBufferDatabase.h

...cessing/simple-visualization/src/ovpCSpectrumDatabase.cpp

...g/simple-visualization/src/ovpCStreamedMatrixDatabase.cpp