Add support of ImageNet21K models for accuracy tests

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 93.92%. Comparing base (3a58970) to head (19f7840). Report is 1 commits behind head on releases/1.1.0.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## releases/1.1.0 #78 +/- ## ================================================== - Coverage 93.97% 93.92% -0.06% ================================================== Files 28 28 Lines 1910 1910 ================================================== - Hits 1795 1794 -1 - Misses 115 116 +1 ``` | [Flag](https://app.codecov.io/gh/openvinotoolkit/openvino_xai/pull/78/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openvinotoolkit) | Coverage Δ | | |---|---|---| | [dev-py310](https://app.codecov.io/gh/openvinotoolkit/openvino_xai/pull/78/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openvinotoolkit) | `93.92% <ø> (-0.06%)` | :arrow_down: | 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=openvinotoolkit#carryforward-flags-in-the-pull-request-comment) to find out more.

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