TODO
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ROI for other format:
  CRW, NEF, ORF, ARW, PEF
Fix ARW A-100
Better implement DNG to fix the spec.
  - JPEG tile decompression
SR2 support
Decompress NRW
Decompress Panasonic RAW and RW2
Extract thumbnails from NEF MakerNote
White and black point (replace min / max, extract from Exif if needed)
sRAW from Canon, YCbCr
Rework the Log/Trace/Debug
Rework the model to match DNG more closely as it would allow a more comprehensive abstraction

Write a parser for X3F
