* add dped docs

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

Co-authored-by: Nqingqing01 <dangqingqing@baidu.com>

* adapt animegan

* clean code
Co-authored-by: Nqingqing01 <dangqingqing@baidu.com>

* add ugatit doc

* add drn model

* add a sr doc

* update README

* add stylegan model

* add wav2lip doc

* add requirement for wav2lip

* add requirement for wav2lip

* add automatic weight download

* add wav2lip trainning code

* add realsr model

* fix some bugs

* update configs

* add lesrcnn model

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

* add stylegan2 and pixel2style2pixel models, predictors and documents

bug fix

* fix some bug

* add esrgan model, refine codes

* Integrate with visualdl
* visualdl: add doc and control paramter
* visual dl: move import, add install doc

* set en readme as default

* set en readme as default

* Add MidDaSv2 in ppgan.apps
* remove ppgan/apps/midas/run.py

* Update README
* Remove ppgan/faceutils/dlibutils/lms.dat
* Update apps.md