New Backbone StarNet

[Lazy-coder-9527]

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Motivation

With the purpose of learning mmlab, reproduce the latest backbone work based on mmlab.

Modification

in this PR ,Reproducing StarNet.
Adapted from https://github.com/ma-xu/Rewrite-the-Stars?tab=readme-ov-file

Checklist

Before PR:

• Pre-commit or other linting tools are used to fix the potential lint issues.
• Bug fixes are fully covered by unit tests, the case that causes the bug should be added in the unit tests.
• The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
• The documentation has been modified accordingly, like docstring or example tutorials.

After PR:

• If the modification has potential influence on downstream or other related projects, this PR should be tested with those projects, like MMDet or MMSeg.
• CLA has been signed and all committers have signed the CLA in this PR.

[CLAassistant]

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