LazFileUtils: fix FileSetDateUTF8 on Windows when FileName contains unicode
characters outside current codepage.


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41289 4005530d-fff6-0310-9dd1-cebe43e6787f
FileUtil: inline FileSetDateUTF8 to use LazFileUtils.FileSetDateUTF8.


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41290 4005530d-fff6-0310-9dd1-cebe43e6787f