SHELL_FS_ProcessDisplayFilename() to call it also in
ISF_Desktop_fnGetDisplayNameOf() and do the same file system
processing for the desktop level
- handle hidden file extensions in SHELL_FS_ProcessDisplayFilename(),
that are configured by "NeverShowExt" in the registry
folders like "My Computer"
- correct path parsing in ISF_Desktop_fnParseDisplayName()
- handle CLSID paths in ISF_MyComputer_fnParseDisplayName()
- return CLSID path in ISF_MyComputer_fnGetDisplayNameOf()