[pipeline inference] pipeline inference

## 📌 Checklist before creating the PR - [ ] I have created an issue for this PR for traceability - [x] The title follows the standard format: `[doc/gemini/tensor/...]: A concise description` - [x] I have added relevant tags if possible for us to better distinguish different PRs ## 🚨 Issue number > Link this PR to your issue with words like fixed to automatically close the linked issue upon merge > > e.g. `fixed #1234`, `closed #1234`, `resolved #1234` ## 📝 What does this PR do? > Summarize your work here. > if you have any plots/diagrams/screenshots/tables, please attach them here. ## 💥 Checklist before requesting a review - [x] I have linked my PR to an issue ([instruction](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue)) - [x] My issue clearly describes the problem/feature/proposal, with diagrams/charts/table/code if possible - [x] I have performed a self-review of my code - [ ] I have added thorough tests. - [x] I have added docstrings for all the functions/methods I implemented ## ⭐️ Do you enjoy contributing to Colossal-AI? - [x] 🌝 Yes, I do. - [ ] 🌚 No, I don't. Tell us more if you don't enjoy contributing to Colossal-AI.