Update the ref to vtkDICOM remote module
This changes the vtkScancoCTReader's bare "ifstream" to "std::ifstream" in order to gain compatibility with !6301 (merged) without breaking compatibility with VTK 7 and 8.
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This changes the vtkScancoCTReader's bare "ifstream" to "std::ifstream" in order to gain compatibility with !6301 (merged) without breaking compatibility with VTK 7 and 8.