static DecodedPath decodedPath(final Path path) {
        Objects.requireNonNull(path);
        return DecodedPath.fromPath(path);
    }
We use this rather than the File.separator as we need to be standard
across Windows and UNIX.
stroom-data/stroom-data-store-impl-fs/src/main/java/stroom/data/store/impl/fs/FsPathHelper.java