### What problem does this PR solve?
This PR have completed both HTTP API and Python SDK for 'list_dataset".
In addition, there are tests for it.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Add upload file by knowledge base name API.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
- [x] Documentation Update
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Co-authored-by: chrysanthemum-boy <fannc@qq.com>
### What problem does this PR solve?
_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._
Issue link:#[[Link the issue
here](https://github.com/infiniflow/ragflow/issues/209)]
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
