add-opencl-test

## Add A New OpenCL Test - Create source file `src/opencl_<name>.cpp`. - Add a bench file `benchmarking/opencl_<name>.bench`. - Register the test in `CMakeLists.txt` with `cl_test(<name> 300)`. - Use the cl_check() function to test OpenCL call return values. Put it on a separate line after the OpenCL call. Do not wrap the OpenCL call. - Build with 'make -j6' - Run from build directory without GPU: `./opencl_<name> -v --cpu`. - Run from build directory with GPU: `./opencl_<name> -v --gpu`. - Fix any errors shown in the output from the above runs. Minimal `src/opencl_<name>.cpp`: ```cpp #include "opencl_common.h" int main(int argc, char** argv) { opencl_req_t reqs{}; // Set reqs.usage and reqs.cmdopt for cmd line options opencl_setup_t cl = cl_test_init(argc, argv, "opencl_<name>", reqs); bench_start_iteration(cl.bench); // ... do work here ... bench_stop_iteration(cl.bench); cl_test_done(cl); return 0; } ``` Minimal `benchmarking/opencl_<name>.bench`: ```json { "name": "opencl_<name>", "description": "<short description of test>" } ```