[Feature] add log collector (#1175)

* [Feature] add log collector

* Update .dev/log_collector/readme.md

Co-authored-by: Miao Zheng <76149310+MeowZheng@users.noreply.github.com>

* Update .dev/log_collector/example_config.py

Co-authored-by: Miao Zheng <76149310+MeowZheng@users.noreply.github.com>

* fix typo and so on

* modify readme

* fix some bugs and revise the readme.md

* more elegant

* Update .dev/log_collector/readme.md

Co-authored-by: Junjun2016 <hejunjun@sjtu.edu.cn>

Co-authored-by: Miao Zheng <76149310+MeowZheng@users.noreply.github.com>
Co-authored-by: Junjun2016 <hejunjun@sjtu.edu.cn>