Add event record/wait to backend graph · Pull Request !89788 · MindSpore/mindspore

1. Add event record/wait to backend graph
2. streamsend &amp; streamrecv supports input/output
3. support mult streams by with stream
4. !89731 support nested/ctrl flow cases
5. !89754 Change stream_name to stream_id, and do not validate the freque…
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**Which issue(s) this PR fixes**:

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