Use jupyer-kernel-gateway for ipython executor (#1748)

* checkpoint async based

* Implement jupyter client and use jupyer gateway

* update deps

* address comments

* add missing parenthesis

* Update build.yml

* CI fixes

* change requirement name

* debug

* print stderr

* dont seek

* show token

* mitigaton for windows bug

* use hex token to avoid - in token

* formatting

* put back in place original while the windows bug exists

* lint

* Update autogen/coding/jupyter_code_executor.py

* Update jupyter_code_executor.py

* Update test_embedded_ipython_code_executor.py

* Update setup.py

* Update build.yml

* fix nameerror

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Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>