GitLab

* [Enhancement] Introduce software pipeline rewriter and refactor buffer access handling

- Added a new `PipelineOpaqueAccessRewriter` class to manage opaque buffer accesses in the software pipeline.
- Refactored the `PipelineBodyRewriter` to utilize the new rewriter for improved buffer access handling.
- Enhanced the `PipelineRewriter` to support additional fragment information and streamline pipeline construction.
- Updated tests to reflect changes in buffer management and access patterns, ensuring compatibility with the new structure.
- Removed obsolete code related to previous buffer access methods for clarity and maintainability.

* test fix