add units to axis names

Base/Pixel/RectangularPixel.cpp

Device/Detector/OffspecDetector.cpp

Device/Detector/SphericalDetector.cpp

Device/IO/ReadRefsans.cpp

GUI/Model/Beam/GrazingScanItem.cpp

GUI/Model/Descriptor/VectorProperty.cpp

Sim/Scan/AlphaScan.cpp

Tests/SimFactory/MakeSimulations.cpp

Tests/Unit/Sim/FittingTestHelper.h

auto/Examples/varia/Depthprobe1.py

auto/Examples/varia/Resonator.py

auto/MiniExamples/varia/Depthprobe1.py

auto/MiniExamples/varia/Resonator.py

rawEx/varia/Depthprobe1.py

rawEx/varia/Resonator.py