[inductor] refactor wrapper benchmark code out of utils.py (#105584)
Refactor wrapper benchmark out of utils.py since
1. utils.py gets too large
2. I plan to add more code to wrapper benchmark for multi-kernel.
This is split out from https://github.com/pytorch/pytorch/pull/103469
Pull Request resolved: https://github.com/pytorch/pytorch/pull/105584
Approved by: https://github.com/jansel
