Add copyright pre-commit-hook (#1742)

* first commit

* Add copyright pre-commit-hook

tests/test_ops/test_upfirdn2d.py

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

tests/test_ops/test_voxelization.py

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

tests/test_parallel.py

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

tests/test_runner/test_basemodule.py

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

tests/test_runner/test_checkpoint.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import sys
 from collections import OrderedDict
 from tempfile import TemporaryDirectory

tests/test_runner/test_dist_utils.py

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

tests/test_runner/test_eval_hook.py

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

tests/test_runner/test_fp16.py

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

tests/test_runner/test_hooks.py

+# Copyright (c) OpenMMLab. All rights reserved.
 """Tests the hooks with runners.
 
 CommandLine:

tests/test_runner/test_optimizer.py

+# Copyright (c) OpenMMLab. All rights reserved.
 import sys
 import warnings
 from unittest.mock import MagicMock

tests/test_runner/test_utils.py

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

tests/test_utils/test_env.py

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

tests/test_utils/test_hub.py

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

tests/test_utils/test_logging.py

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

tests/test_utils/test_parrots_jit.py

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

tests/test_utils/test_registry.py

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

tests/test_utils/test_testing.py

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

tests/test_utils/test_trace.py

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

tests/test_utils/test_version_utils.py

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