Cannot specify Album-Name subfolder

[JmyW]

Hi, thanks for contributing this lib. With this library, I cannot find a way to do saveImageToAlbum and saveVideoToAlbum with an Album name (just sub-folder). Could you help?

For example, GallerySaver package can specify album name like "GallerySaver.saveImage(Image.path, albumName: albumName). But I don't like GallerySaver, it somehow has compatibility issue with my app. Will you be possible to support the useful album-name feature?