[CodeCamp2023-240]Adding support for Consistency Models

[xiaomile]

clean the old commit message，open a new pr for https://github.com/open-mmlab/mmagic/pull/2045

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Modification

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 77.19088% with 190 lines in your changes are missing coverage. Please review.

Project coverage is 78.38%. Comparing base (ef68f11) to head (2659b89). Report is 17 commits behind head on main.

:exclamation: Current head 2659b89 differs from pull request most recent head b9c5000. Consider uploading reports for the commit b9c5000 to get more accurate results

Files	Patch %	Lines
...itors/consistency_models/consistencymodel_utils.py	74.86%	60 Missing and 30 partials :warning:
...ors/consistency_models/consistencymodel_modules.py	79.62%	53 Missing and 13 partials :warning:
...els/editors/consistency_models/consistencymodel.py	76.87%	16 Missing and 18 partials :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2086 +/- ## ========================================== + Coverage 75.70% 78.38% +2.68% ========================================== Files 441 445 +4 Lines 32295 33189 +894 Branches 5082 5210 +128 ========================================== + Hits 24449 26016 +1567 + Misses 6775 5888 -887 - Partials 1071 1285 +214 ``` | [Flag](https://app.codecov.io/gh/open-mmlab/mmagic/pull/2086/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=open-mmlab) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/open-mmlab/mmagic/pull/2086/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=open-mmlab) | `78.38% <77.19%> (+2.68%)` | :arrow_up: | 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=open-mmlab#carryforward-flags-in-the-pull-request-comment) to find out more.

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