ENH: Add Nexus/Hdf5 support for ESRF tomographic file format

[lesaintjerome]

This PR adds support for Nexus/Hdf5 files format, specifically for ESRF tomographic data files.
It assumes the Nexus format.
If the file contains multiple entries, it only open the first one.

In the current status, the code does not compile: linker error:

[100%] Linking CXX executable ../bin/vv.app/Contents/MacOS/vv
Undefined symbols for architecture arm64:
  "_H5check_version", referenced from:
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::CanReadFile(char const*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::Read(void*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
  "_H5open", referenced from:
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::CanReadFile(char const*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::Read(void*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
  "H5::DSetAccPropList::DEFAULT", referenced from:
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::Read(void*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
  "H5::FileAccPropList::DEFAULT", referenced from:
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::CanReadFile(char const*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::Read(void*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
  "H5::FileCreatPropList::DEFAULT", referenced from:
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::CanReadFile(char const*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::Read(void*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
  "H5::DSetMemXferPropList::DEFAULT", referenced from:
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::Read(void*) in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
  "H5::PredType::NATIVE_FLOAT", referenced from:
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
      rtk::NexusHdf5ImageIO::ReadImageInformation() in libclitkCommon.a[17](rtkNexusHdf5ImageIO.cxx.o)
ld: symbol(s) not found for architecture arm64
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [bin/vv.app/Contents/MacOS/vv] Error 1
make[1]: *** [vv/CMakeFiles/vv.dir/all] Error 2