Add support for iOS live photos

First thing first you should find how to extract [live photos](https://support.apple.com/en-us/HT207310) from device with attached video in it.
Then to comply TDD write tests. Then implement it.
Check out this [docs](https://developer.apple.com/documentation/avfoundation/cameras_and_media_capture/capturing_still_and_live_photos/capturing_and_saving_live_photos) too.