Compare different frontend language on ResNet50 model

[Yancey1989]

The ResNet50 model is the classical model in image classification, which used to benchmark distributed training performance, c.f. https://dawn.cs.stanford.edu/benchmark/ImageNet/train.html .

I would like to write a ResNet50 example to compare the code in Python, C++, and Go+ .

reference:

• https://github.com/pytorch/vision/blob/master/torchvision/models/resnet.py
• https://github.com/Keson96/ResNet_LibTorch/blob/master/resnet/resnet.cpp