[Feature] Support downloading datasets from OpenDataLab using mim

[JingweiZhang12]

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Motivation

Please describe the motivation of this PR and the goal you want to achieve through this PR.

Modification

Support downloading KITTI, nuScenes and SemanticKITTI using MIM

BC-breaking (Optional)

Does the modification introduce changes that break the back-compatibility of the downstream repos?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
3. If the modification has potential influence on downstream projects, this PR should be tested with downstream projects.
4. The documentation has been modified accordingly, like docstring or example tutorials.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (e753ecb) 46.91% compared to head (0d1834e) 46.91%.

❗ Current head 0d1834e differs from pull request most recent head 99d01cc. Consider uploading reports for the commit 99d01cc to get more accurate results

Additional details and impacted files

@@           Coverage Diff            @@
##           dev-1.x    #2593   +/-   ##
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  Coverage    46.91%   46.91%           
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  Files          277      277           
  Lines        23381    23381           
  Branches      3644     3644           
========================================
  Hits         10969    10969           
  Misses       11719    11719           
  Partials       693      693           

Flag	Coverage Δ
unittests	46.91% <ø> (ø)

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