Turns out that we won't use this enum for anything else than attribute values, and `Slice` always corresponds to a resident attribute value, so reflect that in the naming.
Index keys still use slices without this enum.
An NTFS file often has more than one FileName attribute and the caller is likely interested in a specific one.
ntfs-shell is changed accordingly to prefer the long filenames.
ntfs-shell is a command-line shell to navigate through an NTFS filesystem.
It works read-only on image files, loopback devices, and raw partitions.
Very useful for debugging the crate, examining the structure of an NTFS filesystem, and extracting data from it.
