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.
* add data_source imagenet
* modify data_source imagenet and add unittest
* modify data_source imagenet and modify unittest
* modify voc data_source and modify voc unittest and download Part
* modify coco data_source and modify coco unittest and add download Part , modify voc data_source
* add dataset metadata Format specification
* add pose download data , modify coco.py and modiy download file function ,add test coco download a part
* modify download file function
* modify download of cifar10 and cifar100
* modify dataset_name to target_dir
* create download_util and modify function
* modify function
* modify function
* add test case , modify
* modify something
* modify something
* modify something
* modify something
* modify something
* modify something
* add wget
* add wget
* modify
* add new modify
* add new modify
* modify something
* modify something and add something
* modify something and add something
* modify something and add something
* modify something and add something
* modify something and add something
* modify test case
* modify test case
* modify test case
* modify test case
* modify test case
* readthedocs build support
* change opencv version from 4.4.0.40 to 4.1.2.30
* update config file path with github url
* fix: clone AutoAugmentPolicy from torchvision error
* reorganize requirements file
* add model compression tutorial and cls modelzoo to readme.md
* add optional req