Add phlippe_resnet (#1324)
Summary:
add [phlippe's resnet model](https://github.com/phlippe/uvadlc_notebooks_benchmarking/blob/main/PyTorch/Tutorial5_Inception_ResNet_DenseNet.py).
Pull Request resolved: https://github.com/pytorch/benchmark/pull/1324
Reviewed By: xuzhao9
Differential Revision: D41507273
Pulled By: FindHao
fbshipit-source-id: d5d5b255c940aa57e9767527686cadc42b5ea4af
