Code refactoring - Enforcing 80 cols + fix warnings for easier

...TrajectoryGeneration/FootTrajectoryGenerationAbstract.cpp

...TrajectoryGeneration/FootTrajectoryGenerationMultiple.cpp

...TrajectoryGeneration/FootTrajectoryGenerationStandard.cpp

...neration/LeftAndRightFootTrajectoryGenerationMultiple.cpp

...otTrajectoryGeneration/OnLineFootTrajectoryGeneration.cpp

src/GlobalStrategyManagers/CoMAndFootOnlyStrategy.cpp

src/Mathematics/Bsplines.cpp

src/Mathematics/Bsplines.hh

src/Mathematics/FootConstraintsAsLinearSystem.cpp

src/Mathematics/OptCholesky.cpp

src/Mathematics/OptCholesky.hh

src/Mathematics/PLDPHerdt.cpp

src/Mathematics/PLDPSolver.cpp

src/Mathematics/StepOverPolynome.cpp

src/Mathematics/StepOverPolynome.hh

src/Mathematics/relative-feet-inequalities.cpp

src/MotionGeneration/ComAndFootRealization.hh

src/MotionGeneration/ComAndFootRealizationByGeometry.cpp

src/MotionGeneration/ComAndFootRealizationByGeometry.hh

src/PatternGeneratorInterfacePrivate.cpp