Add test to compile with opencv

tests/fixtures/compiler/opencv.cu

@@ -0,0 +1,8 @@
+#include <opencv2/core.hpp>
+#include <iostream>
+
+int main(int argc, char** argv)
+{
+    std::cout << cv::getBuildInformation() << std::endl;
+    return 0;
+}

tests/fixtures/fixtures.py

@@ -37,6 +37,11 @@ def compiler_cpp_17_fpath(fixtures_path: str):
     return os.path.join(fixtures_path, "compiler", "cpp_17.cu")
 
 
+@pytest.fixture(scope="session")
+def compiler_opencv_fpath(fixtures_path: str):
+    return os.path.join(fixtures_path, "compiler", "opencv.cu")
+
+
 @pytest.fixture(scope="session")
 def sample_magic_cu_line():
     # fmt: off