Add ocl version of filter2D to the module img_proc
Fix build errors on Linux system
Fix build errors on Linux system
more strict checks outside ROI
added cv::Laplacian, cv::Sobel, cv::Scharr, cv::GaussianBlur to T-API
Fix problems with border extrapolation in kernel. Add Isolated/Nonisolated borders.
Fix error in test
fixed facedetect sample
Merge pull request #1958 from vbystricky:ocl_filter2D
Merge pull request #1973 from ilya-lavrenov:ocl_haar_sample
Merge pull request #1971 from ilya-lavrenov:tapi_laplacian
Merge pull request #1970 from ilya-lavrenov:tapi_checks
added cv::equalizeHist to T-API
eliminated dependency from WGS=256 in cv::equalizeHist