Fixed B_BEGIN_NAMEPACE to B_BEGIN_NAMESPACE.
Implemented a Face construct with two eyes.
Implemented a face detector that yields a list of faces.
Added two cascase files; one for faces and one for eyes.
Link against opencv_objdetect
Main uses the face detector on the supplied image and detects faces in
it. A dump is written to stdout.
Detected faces are drawn onto a copy of the input image and saved to disk.
Link against opencv_imgproc.