[patch] support 14bit NEF

[Rafael Espíndola]

> I don't want the scaling to be done at that point. There are min() and
> max() for the RawData for that purpose that give the valid range of
> values, that can be used to actually scale the color data if needed.

OK.

> The sole goal of unpack is to store each value in 16 bits to be usable
> directly.
>
> So as of today I don't really see any need for this patch since you
> don't need to unpack 14-bits data :-) Sure it makes it more generic, but
> it is basically dead code. And possibly slower.

There is also the part for adding support for 14 bit NEFs. I will
benchmark the old and new 12 bit packing implementation.

> Hub
>
>

Cheers,
Rafael