Reland: Add PyObject preservation for UntypedStorage (#103907)
This relands #97470 after #102553 reverted it. This PR attempts to fix the internal failure by avoiding an unnecessary intermediate storage buffer allocation in `c10::newStorageImplFromRefcountedDataPtr`.
Part of #91395
Pull Request resolved: https://github.com/pytorch/pytorch/pull/103907
Approved by: https://github.com/ezyang
