Add tests for cl_khr_external_semaphore_dx_fence (#2482)

- Add tests to import DirectX 12 fences as semaphores.
- Add tests to export semaphores as DirectX 12 fences.
- Add queries tests.
- Add negative tests.

Fixes: https://github.com/KhronosGroup/OpenCL-CTS/issues/2480

test_conformance/common/directx_wrapper/CMakeLists.txt

@@ -0,0 +1,13 @@
+set(DIRECTX_WRAPPER_SOURCES
+        directx_wrapper.cpp
+)
+
+add_library(directx_wrapper STATIC ${DIRECTX_WRAPPER_SOURCES})
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+include_directories(${CLConform_INCLUDE_DIR})
+
+if (WIN32)
+    target_link_libraries(directx_wrapper d3d12)
+endif ()