* add export_model and inference scripts

* add training od first order motion
* Modify codes according to reviews
* modify single person and multi person process of fom model. 
* Git rid of sklearn, skimage

* add edvr model

* modifying code formats and comments

* modifying code formats and comments

* modifying code formats and comments

* add notes
Co-authored-by: NLielinJiang <50691816+LielinJiang@users.noreply.github.com>

* 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 stylegan model

* add wav2lip trainning code

* Add photo2cartoon model
* Resolve conflicts
* Remove comments
* Add photo2cartoon tutorial
* update p2c tutorials

* add stylegan2 and pixel2style2pixel models, predictors and documents

* add esrgan model, refine codes

* add animeganv2 network and dataset
* animegan:refine code,add License
Co-authored-by: Nqingqing01 <dangqingqing@baidu.com>

* Add Wav2Lip generator.

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

* add ugatit model

* fix import and docs

* Refine some docs
* Update docs/en_US/data_prepare.md

* refine code

* test

* fix apps

* update readme

* rm unused code

* fix apps output when input is image

* clean code

* update requirements.txt