GitLab

* update github action ci

* install torch in ci

* fix ci on win

* add __init__ in tests/utils

* add mmdet3d/testing for modeule importing in UT in win

* fix diff path sep on UT

* reduce RAM in voxel_generator

* reduce RAM in anchor_generator

* remove print in UT

* fix lint

* fix pvrcnn ut

* fix lint

* reduce channels in second_fpn

* refactor sassd

* rename some varibles

* add ut for sassd

* add some comments

* add some comments

* [Refactor] Use `mmeval.MeanIoU` for `SegMetric` (#1929)

* Use mmeval.MeanIoU

* fix comments and add self.reset

* solve some comments

* fix docstring
Co-authored-by: ChaimZhu <zhuchenming@pjlab.org.cn>

* update data flow and ut

* update ut

* update code

* fix mapping bug

* fix comments

* fix cfg name

* update cfg name

* fix cfg

* fix comments

* fix comment

* fix comments