Returns the file system path of this ItemIdList if it is a file system object.
function Path: UnicodeString;
string: The path if this ItemIdList points to a file system object; an empty string otherwise.
ATTENTION: Keep in sync with TJamItemIdList.Path!
If the ItemIdList has been created for a path (using TJamItemIdList.Parse or the constructor) the passed path is cached and returned, so Path might also return non-existing or invalid paths.
The Path is empty for elements without a physical path including URLs. For display purposes you can use DisplayPath instead.