Add Chromium-only Blender WebEngine parity work

web/engine/web_engine_native_smoke.cpp

@@ -0,0 +1,24 @@
+#include <cstdio>
+
+#include "web_engine_api.h"
+
+int main()
+{
+  const int handle = web_engine_create();
+  const int open_result = web_engine_open_blend(handle, nullptr, 0);
+  const int command_result = web_engine_apply_command(handle, nullptr, 0);
+  const uint32_t live_before_destroy = web_engine_get_live_handles();
+  web_engine_destroy(handle);
+  const uint32_t live_after_destroy = web_engine_get_live_handles();
+
+  std::printf("{\"handle\":%d,\"open\":%d,\"command\":%d,\"liveBeforeDestroy\":%u,\"liveAfterDestroy\":%u}\n",
+              handle,
+              open_result,
+              command_result,
+              live_before_destroy,
+              live_after_destroy);
+  return handle == 1 && open_result == -2 && command_result == -2 && live_before_destroy == 1 &&
+                 live_after_destroy == 0 ?
+             0 :
+             1;
+}