GitLab

* add isort config

* use isort to sort imports

* add isort to travis

* Reformat use yapf 0.27.0

* Add yapf style file

* rename normalize to norm_cfg

* update configs

* Update resnet.py

* add support for weight standardization

* add ws support for htc heads

* add a config file for 20-23-24e lr schedule

* update readme of weight standardization