Function to change the name of the file on the CF card.
Function Name
INT WINAPI EasyFileRenameInCfCard(LPCSTR sNodeName, LPCSTR sFolderName, LPCSTR sFileName, LPCSTR sFileRename) ;
Argument
sNodeName: The station name is fixed as #WinGP.
sFolderName: Folder name of a file to be renamed in CF Card (maximum 32 characters)
sFileName: File name to be renamed in CF Card (Max. 8.3 format text)
sFileRename: Renamed file name (Max. 8.3 format text)
Return value (NULL)
Normal End: 0
Problem: Error code