Provide StringUtf8 fileName variant for FileNode in ANSI system
we have a large number of ANSI environments that we have a huge investment in and would be a major change to convert to Unicode. However these environments are having to handle directory and file names that contain true Unicode names which do not convert to ANSI. The FileNode property fileName is of type String and returns a meaningless name where the file name contains Chinese characters. Provision of a StringUtf8 filename would allow access of such names and handling f these