MetaIO limits file names to 255 characters

[dzenanz]

More information in this forum discussion:
https://discourse.itk.org/t/imagefilewriter-crashes-when-writing-mhd-file-to-long-absolute-path/1856/

[dzenanz]

#74 fixes the issue. My problem was that the path did not exist. Also, to go over 260 character limit on windows, \\?\ prefix and backslashes are required:
std::string absolutePathDoCrash = "\\\\?\\C:\\Misc\\MetaIO\\VS2017\\src\\tests\\build-verylongFOlderNamexxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx-Desktop_Qt_5_12_0_Clang_64bit-Debug\\abcdefghijklmnopqrstuvwxyzABCDEFGHI.mhd";