Add support for .ARW compressed format (S/M lossless)

Opening a ARW (Sony RAW) photo that was taken in S/M lossless compressed format does not currently work. ### Reproduction Steps 1. Trying to open such a photo 2. App is stuck with "Opening 1 file" message 3. It doesn't work ### Your Browser and Device >https://www.whatsmybrowser.org/b/AM15B