Autogen native_batch_norm and native_batch_norm_backward (#79637)
This PR makes the `native_batch_norm` and `native_batch_norm_backward` ops autogen, and implements their respective shape inference functions.
Previously, these two ops were manually implemented.
cc: @ke1337 @antoniojkim @wconstab @desertfire
Pull Request resolved: https://github.com/pytorch/pytorch/pull/79637
Approved by: https://github.com/Gamrix, https://github.com/desertfire
