public SimpleDirectory(BasicDirectoryInfo basicMetadata, int contentId, params SimpleFileSystemObject[] content) : this(basicMetadata, new SimpleVersion(contentId), content)
 {
 }
 public SimpleDirectory(BasicDirectoryInfo basicMetadata, params SimpleFileSystemObject[] content) : this(basicMetadata, 0, content)
 {
 }
 public SimpleDirectory(BasicDirectoryInfo basicMetadata, SimpleVersion version, params SimpleFileSystemObject[] content) : base(basicMetadata, version, _defaultSecurity)
 {
     _content = new ConcurrentDictionary <string, SimpleFileSystemObject>(content.ToDictionary(item => item.Name, item => item));
 }