[Feature] Add vllm inference example

[wheresmyhair]

Description

1. Add vllm inference example
2. Change detokenize to decode_inference_result to make it clearer

Tests

1. MemorySafeVLLMInference test

2. Example sh test Note that the fetal python error comes from the killing signal. This will not affect the inference, as the results are already saved:

[wheresmyhair]

Changes made, tests passed.

Tests

1. Example sh test

2. MemorySafeVLLMInference test