### What this PR does / why we need it?
Add `collect_env.py` scripts from vLLM and remove `nvidia`, `gpu`,
`cuda` related codes, thus users of vllm-ascend can collect their env
info when reporting bugs.
### Does this PR introduce _any_ user-facing change?
no.
### How was this patch tested?
Run `python collect_env.py` works
Signed-off-by: Shanshan Shen <467638484@qq.com>
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