GitLab

* add op fps with distance

* add op fps with distance

* modify F-DFS unittest

* modify sa module

* modify sa module

* SA Module support D-FPS and F-FPS

* modify sa module

* update points sa module

* modify point_sa_module

* modify point sa module

* reconstruct FPS

* reconstruct FPS

* modify docstring

* add pointnet2-sa-msg backbone

* modify pointnet2_sa_msg

* fix merge conflicts

* format tests/test_backbones.py

* [Refactor]: Add registry for PointNet2Modules

* modify h3dnet for base pointnet

* fix docstring tweaks

* fix bugs for config unittest
Co-authored-by: ZwwWayne <wayne.zw@outlook.com>

* add primitive head

* register of primitive head

* modify primitive head

* modify primitive head

* modify primitive head

* modify primitive head

* update primitive head unittest

* modify primitive had

* fix bugs for primitive head

* update primitive head

Update mmdet3d/models/dense_heads/anchor3d_head.py, mmdet3d/models/dense_heads/free_anchor3d_head.py, mmdet3d/models/dense_heads/parta2_rpn_head.py, mmdet3d/models/dense_heads/train_mixins.py, mmdet3d/models/dense_heads/vote_head.py, mmdet3d/models/roi_heads/bbox_heads/parta2_bbox_head.py, mmdet3d/models/roi_heads/mask_heads/pointwise_semantic_head.py, mmdet3d/models/roi_heads/roi_extractors/single_roiaware_extractor.py, mmdet3d/models/roi_heads/base_3droi_head.py, mmdet3d/models/roi_heads/part_aggregation_roi_head.py files