[Enhance] add README and copyright pre-commmit (#1134)

* add precommmit to check readme

* update

* fix typos

mmdet3d/models/roi_heads/bbox_heads/point_rcnn_bbox_head.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import numpy as np
 import torch
 from mmcv.cnn import ConvModule, normal_init

mmdet3d/models/roi_heads/point_rcnn_roi_head.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch.nn import functional as F
 

mmdet3d/models/roi_heads/roi_extractors/single_roipoint_extractor.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch import nn as nn
 

mmdet3d/ops/ball_query/__init__.py

+# Copyright (c) OpenMMLab. All rights reserved.
 from .ball_query import ball_query
 
 __all__ = ['ball_query']

mmdet3d/ops/ball_query/ball_query.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch.autograd import Function
 

mmdet3d/ops/furthest_point_sample/__init__.py

+# Copyright (c) OpenMMLab. All rights reserved.
 from .furthest_point_sample import (furthest_point_sample,
                                     furthest_point_sample_with_dist)
 from .points_sampler import Points_Sampler

mmdet3d/ops/furthest_point_sample/furthest_point_sample.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch.autograd import Function
 

mmdet3d/ops/furthest_point_sample/points_sampler.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from mmcv.runner import force_fp32
 from torch import nn as nn

mmdet3d/ops/furthest_point_sample/utils.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 
 

mmdet3d/ops/gather_points/__init__.py

+# Copyright (c) OpenMMLab. All rights reserved.
 from .gather_points import gather_points
 
 __all__ = ['gather_points']

mmdet3d/ops/gather_points/gather_points.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch.autograd import Function
 

mmdet3d/ops/group_points/__init__.py

+# Copyright (c) OpenMMLab. All rights reserved.
 from .group_points import GroupAll, QueryAndGroup, grouping_operation
 
 __all__ = ['QueryAndGroup', 'GroupAll', 'grouping_operation']

mmdet3d/ops/group_points/group_points.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch import nn as nn
 from torch.autograd import Function

mmdet3d/ops/interpolate/__init__.py

+# Copyright (c) OpenMMLab. All rights reserved.
 from .three_interpolate import three_interpolate
 from .three_nn import three_nn
 

mmdet3d/ops/interpolate/three_interpolate.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch.autograd import Function
 from typing import Tuple

mmdet3d/ops/interpolate/three_nn.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch.autograd import Function
 from typing import Tuple

mmdet3d/ops/iou3d/__init__.py

+# Copyright (c) OpenMMLab. All rights reserved.
 from .iou3d_utils import boxes_iou_bev, nms_gpu, nms_normal_gpu
 
 __all__ = ['boxes_iou_bev', 'nms_gpu', 'nms_normal_gpu']

mmdet3d/ops/iou3d/iou3d_utils.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 
 from . import iou3d_cuda

mmdet3d/ops/knn/__init__.py

+# Copyright (c) OpenMMLab. All rights reserved.
 from .knn import knn
 
 __all__ = ['knn']

mmdet3d/ops/knn/knn.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch.autograd import Function