rename IAxis -> Scale

Base/Axis/Frame.cpp

Base/Axis/Frame.h

Base/Axis/FrameUtil.cpp

Base/Axis/FrameUtil.h

Base/Axis/MakeScale.cpp

Base/Axis/MakeScale.h

Base/Axis/Scale.cpp

Base/Axis/Scale.h

Base/Pixel/RectangularPixel.cpp

Base/Pixel/RectangularPixel.h

Device/Coord/CoordSystem1D.cpp

Device/Coord/CoordSystem1D.h

Device/Coord/CoordSystem2D.cpp

Device/Coord/CoordSystem2D.h

Device/Coord/ICoordSystem.cpp

Device/Coord/ICoordSystem.h

Device/Data/ArrayUtil.cpp

Device/Data/DataUtil.cpp

Device/Data/Datafield.cpp

Device/Data/Datafield.h