fix: standardized parenthesis for if and for blocks

SequenceComparison/calcul.cpp

SequenceComparison/distancet.h

SequenceComparison/draw.cpp

SequenceComparison/dtw.cpp

SequenceComparison/external.h

SequenceComparison/help.cpp

SequenceComparison/lcss.cpp

SequenceComparison/mains.cpp

SequenceComparison/operation.cpp

SequenceComparison/operation.h

SequenceComparison/parameter.cpp

SequenceComparison/parser.cpp

SequenceComparison/pdtw.cpp

SequenceComparison/preprocess.cpp

SequenceComparison/print.cpp

SequenceComparison/structs.h

SequenceComparison/veSegment.cpp

SequenceComparison/veSegment.h

SequenceComparison/veTree.cpp