* update setup.py
* update collect_env accordingly
* rm VERSION and hardcode version.py
* Use get_git_hash in mmcv
* fix bug of version_file
* use function to parse version
* use __version__
* only print first 7 of git hash
* resolve comments
* Fix torch install issue in action
* update to pytorch 1.3.1 and 1.5.1 in CI
* add build_cpu and lint jobs
* add missing dependencies
* fix mmcv version
* fix variable name
* add missing dependencies
* clean op
* clean
* update build.yml
* fix setup
* change ci mmcv version
* change ci mmcv version
* add install pre-build mmcv instructions
* update mmcv url, move some unnit tests to mmcv
* update ci mmcv
* test
* test
* test
* fix unit test
* fix unit test
* fix onnx script
* update mmcv url
* fix typo
* fix some doc
* Bump version
* resolve comments
* Fix version bug
Co-authored-by: ZwwWayne <wayne.zw@outlook.com>