* add mpr deblur derain and denoise pretrained models for image restoration application

* Add 7day course info on readme

* Update README_cn.md

* Add homework file

* Update homework1.md

* add github homework submit instruction

* Update README_cn.md

* Update README.md

* Update requirements.txt

* Update README.md

* add configuration options
e.g. python tools/main.py --c configs/stylegan_v2_256_ffhq.yaml -o total_iters=1 log_config.visiual_interval=1

* add stargan-v2 test and train code

* code normalization

* modify FAN code

* add munch in requirements.txt

* add requirement for wav2lip

* add requirement for wav2lip

* fix auto downloading problem of dlib weight and add s3fd face detector

* refine code

* test

* fix apps

* update readme

* rm unused code

* fix apps output when input is image

* clean code

* update requirements.txt