[PPQ] Step 0/n Support int8 conversion for NV Platform

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:white_check_mark: liuxubit
:white_check_mark: zhiqwang
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[liuxubit]

add ptq by ppq and generate calibration data by zeroq

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (3eab7be) 92.11% compared to head (e4b9e48) 92.11%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #487 +/- ## ======================================= Coverage 92.11% 92.11% ======================================= Files 11 11 Lines 786 786 ======================================= Hits 724 724 Misses 62 62 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `92.11% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zhiqiang+Wang#carryforward-flags-in-the-pull-request-comment) to find out more. Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zhiqiang+Wang). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Zhiqiang+Wang)

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