With the new iOS 11 and new folders app, is there an easy way to get older photos on my portable hard drive back onto my iPhone? Basically a few years ago I had downloaded all my photos from my old iPhone and put them on an external hard drive while deleting them on my phone to allow more space. Since I now have 256GB (I have a ton of free space), is there an easy way to get those old iPhone photos back to my current iPhone?