introduce an "util" function to hide file or folder for Win OS
Revert "introduce an "util" function to hide file or folder for Win OS"

This reverts commit a3579a69a45eab6b7d326a724b4598052990d996.
introduce an "util" function to hide file or folder for Win OS
Merge pull request #724 from Ellega/HideFileWinOs

introduce an "util" function to hide file or folder for WinOS