Add copyright pre-commit-hook (#1742)

* first commit

* Add copyright pre-commit-hook

tests/test_cnn/test_fuse_conv_bn.py

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

tests/test_cnn/test_generalized_attention.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 
 from mmcv.cnn.bricks import GeneralizedAttention

tests/test_cnn/test_hsigmoid.py

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

tests/test_cnn/test_hswish.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 from torch.nn.functional import relu6
 

tests/test_cnn/test_model_registry.py

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

tests/test_cnn/test_non_local.py

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

tests/test_cnn/test_revert_syncbn.py

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

tests/test_cnn/test_scale.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import torch
 
 from mmcv.cnn.bricks import Scale

tests/test_cnn/test_swish.py

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

tests/test_cnn/test_transformer.py

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

tests/test_cnn/test_wrappers.py

+# Copyright (c) OpenMMLab. All rights reserved.
 from unittest.mock import patch
 
 import pytest

tests/test_fileclient.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import os
 import os.path as osp
 import sys

tests/test_ops/test_active_rotated_filter.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import numpy as np
 import pytest
 import torch

tests/test_ops/test_assign_score_withk.py

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

tests/test_ops/test_ball_query.py

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

tests/test_ops/test_bbox.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import numpy as np
 import pytest
 import torch

tests/test_ops/test_bilinear_grid_sample.py

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

tests/test_ops/test_border_align.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import copy
 
 import numpy as np

tests/test_ops/test_box_iou_rotated.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import numpy as np
 import pytest
 import torch

tests/test_ops/test_carafe.py

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