GitLab

* add lidar_seg_inferencer

* fix random caused in slide_infernce

* Update semantickitti.py

* fix

* add BaseSeg3DInferencer

* refactor

* rename BaseDet3DInferencer to Base3DInferencer

* fix import error

* update doc

* update centerpoint, dgcnn, fcos3d and free_anchor metafile

* check all metafile in configs

* update centerpoint, pointpillars and second yml

* rename PartA2 to parta2 in the name of config

* update metafile in nuimages

* update readme in nuimages

* fix cfg name

* update cfg name

* fix cfg

* fix comments

* fix comment

* fix comments

* update metafile

* modify version

* fix typo

* fix typo

* fix typo

* add configs for pn2 on s3dis

* fix bugs

* add README for PN2 segmentor

* update configs file after experiments

* update README

* add base schedule files for seg configs

* rename pn2_seg config files

* update pn2 links in README

* add metafile for pn2