1. Use original config as startup script. (For details, see refactor config parsing method #225)
2. Refactor the splicing rules of the check_base_cfg_path function in the EasyCV/easycv/utils/config_tools.py
3. Support three ways to pass class_list parameter.
4. Fix the bug that clsevalutor may make mistakes when evaluating top5.
5. Fix the bug that the distributed export cannot export the model.
6. Fix the bug that the load pretrained model key does not match.
7. support cls data source itag.
1.Add a backbone: deitiii.
2.Add an optimizer: lamb.
3.Add a sampler: RASampler.
4.Add a lr update hook: CosineAnnealingWarmupByEpochLrUpdaterHook.
5.In easycv/models/classification/classification.py, I remove the default mixup_cfg to keep the classification.py clean.
