[Performance]: Official inference performance report comparing vllm_ascend and vllm

[dawnranger]

vllm performance docs:

https://docs.vllm.ai/en/latest/performance/benchmarks.html

vLLM Performance Dashboard

https://perf.vllm.ai

[hfadzxy]

The vllm-ascend benchmark dashboard will be released together with our first official version, expected by late March or early April. Stay tuned.