[Feature] Support Distributed LogProb for GRPO Training (#6247)

* [fix] fix qwen VocabParallelLMHead1D and gather output

* fix tp bug

* fix consumer

* [feat] Support Distributed LogProb for GRPO Training

* [fix] fix loss func

* [fix] fix log prob plugin

* [fix] fix qwen modeling param

* [fix] rm comments

* [fix] rm hard-code;fix non-dist version

* [fix] fix test file param name and benchmark tp gather output=True/False

* [fix] rm non-dist version in dist log prob

* [fix] fix comments

* [fix] fix dis log prob plugin

* [fix] fix test case

* [fix] fix qwen VocabParallelLMHead1D and gather output

* [fix] fix DistLogProb comments

* [fix] restore tp size

* [fix] fix comments

* [fix] fix comment; fix LogSoftmax usage

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Co-authored-by: Tong Li <tong.li35271158@gmail.com>