public bool Contains(OSPath path) => Normalized.StartsWith(path);
protected FolderEntry(OSPath fullPath, OSPath root) { FullPath = fullPath; Root = root; }
public Folder(OSPath fullPath, OSPath root) : base(fullPath, root) { }
public FolderFile File(OSPath path) => new FolderFile(FullPath + path, Root);
public Folder(OSPath fullPath) : this(fullPath, OSPath.Empty) { }