message: Add binding for ek.JitFlag.Default
diff: @@ -211,7 +211,8 @@ PYBIND11_MODULE(enoki_ext, m_) {
  .value("ADEagerForward", JitFlag::ADEagerForward)
  .value("ADCheckWeights", JitFlag::ADCheckWeights)
  .value("KernelHistory", JitFlag::KernelHistory)
  - .value("LaunchBlocking", JitFlag::LaunchBlocking);
  + .value("LaunchBlocking", JitFlag::LaunchBlocking)
  + .value("Default", JitFlag::Default);
  #if defined(ENOKI_ENABLE_CUDA)
  m.def("device_count", &jit_cuda_device_count);
  