GitLab

* add pvrcnn module code

* add voxelsa

* fix

* fix comments

* fix comments

* fix comments

* add stack sa

* fix

* fix comments

* fix comments

* fix

* add ut

* fix comments

* rebase & resubmit

* rename config & model

* fix unittest

* resolve comments & add docstring for class_agnostic_nms

* refine loss calculation & remove find_unused_parameters

* resolve typo & add docstring

* resolve comments

* Add header for files

* Add header for files

* Add header for files

* Add header for files

* add h3d head

* add h3d roi head

* update docstring of h3d roi head

* reconstruct h3d head

* remove unused code

* modify h3d bbox head

* add h3dnet init files

* modify h3d bbox head

* add depth_box3d unittest

* update h3d head

* add h3dnet benchmark

* update docstring in vote_head

* resovle primitive conflict