Nano: openvino related fundamental examples

[TheaperDeng]

• [ ] need fundamental examples to python/nano/tutorial/inference/openvino and show how to directly load an openvino model and use it as model(x). 2 examples for async_predict, model(x) respectively.

• [ ] need save/load examples to /python/nano/tutorial/notebook/inference/pytorch and show how to save(export)/load an optimized model.

[hjzin]

I think we may also need a fundamental example to python/nano/tutorial/inference/pytorch to show the usage of async_predict on optimized pytorch model.

[TheaperDeng]

I think we may also need a fundamental example to python/nano/tutorial/inference/pytorch to show the usage of async_predict on optimized pytorch model.

Yeah I think we do, but maybe we can start a thread to first add the save(export) fundamental example first.

[hjzin]

I think we may also need a fundamental example to python/nano/tutorial/inference/pytorch to show the usage of async_predict on optimized pytorch model.

Yeah I think we do, but maybe we can start a thread to first add the save(export) fundamental example first.

OK, I wil work on it.