//инициализация
 public ManualsModule(ICommonLogger logger
     , PreviewImageQueries previewImageQueries, ContentImageQueries contentQueries
     , ManualsSettings settings, MongoDbConnectionSettings mongoSettings)
 {
     _logger = logger;
     _previewQueries = previewImageQueries;
     _contentQueries = contentQueries;
     _settings = settings;
     _context = new MongoDbContext(mongoSettings);
 }
 //инициализация
 public DemoContentModule(ICommonLogger logger
     , PreviewImageQueries previewImageQueries, IFileStorage fileStorage
     , MongoDbConnectionSettings mongoSettings, DemoContentSettings settings)
 {
     _logger = logger;
     _previewQueries = previewImageQueries;
     _fileStorage = fileStorage;
     _settings = settings;
     _context = new MongoDbContext(mongoSettings);
 }