refact model runner v1
### What this PR does / why we need it?
1. Separate the execute model logic from the prepare input logic
2. Disassemble the torchchair in model runner v1
- vLLM version: v0.10.0
- vLLM main:
68fcd3fa73
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Signed-off-by: weiguihua2 <weiguihua2@huawei.com>