Merge branch 'fix_ocv_bob_image_conversion' into 'master'

bob/io/stream/test/data/projected_bounding_box.npy

bob/io/stream/test/data/projected_landmarks.npy

bob/io/stream/test/data/reprojection_color.png

bob/io/stream/test/data/reprojection_depth.png

bob/io/stream/test/data/swir_940_dark_subtract.png

bob/io/stream/test/data/warp_swir_norm.png

bob/io/stream/test/data/warp_thermal.png

bob/io/stream/test/test_utils.py

bob/io/stream/utils.py