Add a RGB unpacked decoder for the sNEF format
Fix support for the D800/D810 subformats
Add definitions for all D800 and D810 submodes
Specify settings for NEF depending on resolution
Fix bug in uncompressed NEF handling of image size
Don't crop the D800 unless it's a fullframe image
Add flag to say that the image has WB applied
Merge pull request #54 from pedrocr/nikon-subformat-fixes

Support for the crazy Nikon subformats in the D800, D810 and D4s