[Model] Automatic conversion of classification and reward models

[DarkLight1337]

This is the last PR to finish off #10674.

CLOSE #10674
FIX #11459

[github-actions]

👋 Hi! Thank you for contributing to the vLLM project.
Just a reminder: PRs would not trigger full CI run by default. Instead, it would only run fastcheck CI which starts running only a small and essential subset of CI tests to quickly catch errors. You can run other CI tests on top of those by going to your fastcheck build on Buildkite UI (linked in the PR checks section) and unblock them. If you do not have permission to unblock, ping simon-mo or khluu to add you in our Buildkite org.

Once the PR is approved and ready to go, your PR reviewer(s) can run CI to test the changes comprehensively before merging.

To run CI, PR reviewers can do one of these:

• Add ready label to the PR
• Enable auto-merge.

🚀

[DarkLight1337]

cc @maxdebayser

[Isotr0py]

LGTM!

[umie0128]

@DarkLight1337 hi 我看到vllm0.6.4/0.6.5 更新说有速度上的提升 但是我对比了0.6.2 跑qwen2.5-7B 感觉速度没有变化。请问是为啥呢

[DarkLight1337]

@DarkLight1337 hi 我看到vllm0.6.4/0.6.5 更新说有速度上的提升 但是我对比了0.6.2 跑qwen2.5-7B 感觉速度没有变化。请问是为啥呢

Hi, this PR is about pooling models, not text generation models. Can you open a new issue for this?