Swipe Left lets you post a panorama, group shot, or any photo you choose as an Instagram Multiple Selection (a.k.a "swipe left") post. Now you can show the full, hi-res detail of your photo by swiping through the image one screen at a time. Load a photo into the app, then pan, zoom, flip and/or rotate to get the best fit then let the app slice the photo up into individual frames that will fit seamless back together when loaded into Instagram as a Multiple Selection post. App preview video…