Add -Wextra and -Wpedantic

Core/include/ACTS/Extrapolation/Wrapper.hpp

Core/include/ACTS/MagneticField/ConstantBField.hpp

Core/include/ACTS/MagneticField/InterpolatedBFieldMap.hpp

Core/include/ACTS/MagneticField/concept/AnyFieldLookup.hpp

...ude/ACTS/Propagator/detail/condition_uses_result_type.hpp

Core/include/ACTS/Surfaces/InfiniteBounds.hpp

Core/include/ACTS/Utilities/concept/AnyGrid.hpp

Core/include/ACTS/Utilities/detail/MPL/type_collector.hpp

Core/include/ACTS/Utilities/detail/grid_helper.hpp

Core/src/Extrapolation/MaterialEffectsEngine.cpp

Core/src/Extrapolation/RungeKuttaUtils.cpp

Core/src/Surfaces/ConeSurface.cpp

Core/src/Surfaces/CylinderSurface.cpp

Core/src/Surfaces/DiscSurface.cpp

Core/src/Surfaces/LineSurface.cpp

Core/src/Surfaces/PerigeeSurface.cpp

Core/src/Surfaces/PlaneSurface.cpp

Core/src/Surfaces/StrawSurface.cpp

Core/src/Tools/SurfaceArrayCreator.cpp

Core/src/Utilities/BFieldMapUtils.cpp