Add support for Sony RAW format images

[nitika080289]

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[nitika080289]

Looking at the code, I see that the tiff parser skips the CR2 format files with tiff extension. I am trying to follow the same approach, instead of adding an ARW parser. I chose this because the errors which we see are for the ARW format files with tiff extension. Skipping these would prevent the preview rendering.
The exif data for Sony ARW images contains information like SubFileType, Compression and Make, which can be used to identify if it is an ARW file. I got this idea from the exiftool which was able to identify the files correctly. I have tried this with multiple files and it worked. https://github.com/exiftool/exiftool/blob/e969456372fbaf4b980fea8bb094d71033ac8bf7/lib/Image/ExifTool/Exif.pm#L929