added 3-channels support to morphology operations
Merge pull request #2496 from ilya-lavrenov:tapi_imgproc
optimized sep filter
simplified cv::sepFilter2D OpenCL part
generalized OpenCL version of cv::sepFilter2D; removed some restrictions and added 3-channels support
enabled 3-channels support for cv::createSuperResolution_BTVL1
added 3-channels support to optimized version
generalized OpenCL version of cv::sepFilter2D; removed some restrictions and added 3-channels support
added 3-channels support to cv::Canny