GitLab

* Adjust the directory structure of tests

* Adopted the new directory via _get_config_directory

* Adopted the new directory via _get_config_directory

* Adopted the new directory via _get_config_directory

* modified the wrong code comments

* Add shape-aware grouping head

* Reformat docstrings

* Remove rewritten get_anchors in shape_aware_head

* Refactor and simplify shape-aware grouping head

* Fix docstring

* Remove fixed preset shape heads

* Add unittest for AlignedAnchor3DRangeGeneratorPerCls

* Add unittest for get bboxes in shape_aware_head

* Add unittest for loss of shape_aware_head

* Fix unstandard docstrings

* Minor fix for a comment

* Add assertion to make sure not all boxes are filtered

* Add merge_aug_bboxes_3d unittest

* Add voxel_generator unittest

* Change test_merge_augs

* Add clean_data unittest

* Finish eval_class unittest

* Add kitti_eval unittest

* Add do_eval unittest

* Add gpu judgement for do_eval

* Change test_kitti_eval and test_voxel_generator

* Change to isclose

* Add unittests for bbox transform

* Add unittests for bbox transform

* Add unittests for bbox transform

* Add decode

* Add pred_split unittest

* Change allclose to eq