feat: add polaris router lane examples

[fuyuwei01]

PR Type

Describe what this PR does for and how you did.

Adding the issue link (#xxx) if possible.

Note

Checklist

• [ ] Add information of this PR to CHANGELOG.md in root of project.
• [ ] Add documentation in javadoc or comment below the PR if necessary.

Checklist (Optional)

• [ ] Will pull request to branch of 2023.
• [ ] Will pull request to branch of 2022.
• [ ] Will pull request to branch of 2021.
• [ ] Will pull request to branch of 2020.
• [ ] Will pull request to branch of hoxton.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 92.30769% with 1 line in your changes missing coverage. Please review.

Project coverage is 77.88%. Comparing base (3606712) to head (5536ba4).

Files	Patch %	Lines
...ent/cloud/polaris/router/RouterConfigModifier.java	88.88%	0 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 2020 #1379 +/- ## ============================================ + Coverage 77.85% 77.88% +0.02% Complexity 2 2 ============================================ Files 270 270 Lines 5989 6000 +11 Branches 717 718 +1 ============================================ + Hits 4663 4673 +10 Misses 940 940 - Partials 386 387 +1 ```

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