Rename tests from cc to cpp

tests/TestPlatform.cpp

@@ -0,0 +1,16 @@
+#define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/catch_approx.hpp>
+#include <catch2/generators/catch_generators.hpp>
+#include <vector>
+#include <map>
+#include <string>
+#include "TestUtils.h"
+#include "config.h"
+
+
+TEST_CASE("Test Python Classifiers score", "[PyClassifiers]")
+{
+    std::string version = { platform_project_version.begin(), platform_project_version.end() };
+    REQUIRE(version == "1.0.4");
+}