* AddHyperIQA (#2)
* add assessment method: hyperiqa
* add assessment method: hyperiqa
* add assessment method: hyperiqa
* add assessment method: hyperiqa
* add assessment method: hyperiqa
* delete initialization code
* Headpose—hopenet (#3)
* fix a bug: bgr->rgb
* add headpose method: hopenet
* add headpose method: hopenet
* eliminate conflict of hyperiqa
* add function: scandir
* add function: scandir
* add matting: modnet (#4)
* add pad blur
* fix bug in face restoration helper
* add face parsing bisenet
* fix bug
* update download link for models
* version v0.2.0.0
Co-authored-by: Liangbin <lb.xie@siat.ac.cn>