metaformer

Repeat multiple times of CIFAR100 data for training

Use ECA-net (https://github.com/BangguWu/ECANet/blob/master/models/eca_module.py) to reach 78.6%

Reach 77.95% for pretraining when drop-path is 0.0

To help deployment

Reach 70.94% val-accuracy for CIFAR100 1600 epochs (training from scratch)