rename Coordinates <- Converter in most contexts

Core/Scan/CoordSystem1D.cpp

Core/Scan/CoordSystem1D.h

Core/Simulation/DepthProbeSimulation.cpp

Core/Simulation/OffSpecularSimulation.cpp

Device/Instrument/CoordSystem2D.cpp

Device/Instrument/CoordSystem2D.h

GUI/coregui/Models/InstrumentItems.cpp

Tests/UnitTests/Core/Axes/CoordSystem1DTest.cpp

Tests/UnitTests/Core/Core/DepthProbeConverterTest.cpp

Tests/UnitTests/Core/Instrument/OffSpecularConverterTest.cpp

auto/Wrap/doxygenCore.i

auto/Wrap/doxygenDevice.i