Add support for using AffineQuantizedTensor with weights_only=True
#630
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Summary:
torch.load(file, weights_only=True)
is safer so ideally we can use that, by default it does not work with tensor subclasses, since now we have https://pytorch.org/docs/main/notes/serialization.html#torch.serialization.add_safe_globals we can add all tensor subclass classes and special types to globals so that these can work withweights_only=True
Test Plan:
python test/dtypes/test_affine_quantized.py
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