Log Message:
Update libraw to 0.12.0

Complete changelist:

* DCB interpolation and FBDD denoising integrated into main LibRaw.
* Two addtional demosaic packs:
o GPL2-licensed: AFD, LMMSE, VCD, Modified AHD and AHD+VCD interpolations.
Additional median filters from 'Modified DCRAW' package. Foveon support also
included in this pack.
o GPL3-licensed: AMaZE interpolation and chromatic aberrations correction from
RawTherapee
* LCMS 2.x support
* New ./configure script, based on GNU autotools.
* Bugfixes:
o Fix in green_matching code to support nonstandard Bayer pattern
o Fixed bug in add_masked_borders_to_bitmap() call for cameras with masked
border composed of odd number of pixels.
* New command line options for unprocessed_raw sample: -B - subtract black
level, -M - add masked pixels to bitmap.