core.clj: added 'into-bw' function
binary-ops.clj: added (TODO)s to keep track of what is missing
processing.clj: corrected boof-cv 'threshold' wrapper
added images.clj: general get/set pixel for other types of images
ImageInt{8,16,32,64}
image_statistics.clj: started wrapper for ImageStatistics class from boofcv
images.clj: added some more image types