fixed morphology operations
improved performance of cv::flip (flip cols)
Added Device:: isAMD,isIntel,isNvidia methods.
improved performance of GFTT
ported fast calculation of covar data
improved cv::preCornerDetect
added new dtypes to cv::Sobel
Pass vendor macro to opencl kernel
Merge pull request #2453 from ilya-lavrenov:tapi_sobel
Merge pull request #2451 from ilya-lavrenov:tapi_fast_covar_data
Merge pull request #2444 from ilya-lavrenov:tapi_gftt
Merge pull request #2441 from akarsakov:ocl_platform_vendor
Merge pull request #2438 from ilya-lavrenov:tapi_flip
Merge pull request #2437 from ilya-lavrenov:tapi_morph