Merge pull request #19112 from rgarnov:rg/generic_copy_kernel

Generic copy kernel

* Moved RMat wrapping of cv::Mats to StreamingInput

* Generalized GCopy kernel

* Generic GCopy kernel: applied review comments

modules/gapi/test/cpu/gapi_core_tests_fluid.cpp

@@ -433,12 +433,4 @@ INSTANTIATE_TEST_CASE_P(ReInitOutTestFluid, ReInitOutTest,
                                 Values(CORE_FLUID),
                                 Values(cv::Size(640, 400),
                                        cv::Size(10, 480))));
-
-INSTANTIATE_TEST_CASE_P(CopyTestFluid, CopyTest,
-                        Combine(Values( CV_8UC1, CV_8UC3, CV_16UC1, CV_16SC1, CV_32FC1 ),
-                                Values(cv::Size(1280, 720),
-                                       cv::Size(640, 480),
-                                       cv::Size(128, 128)),
-                                Values(-1),
-                                Values(CORE_FLUID)));
 }