Add another torch::jit::load API to load PyTorch model with shared_ptr PyTorchStreamReader input (#48802)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48802
Current torch::jit::load API only supports unique_ptr ReadAdaptInterface input, but for some cases, torch::jit::load may not be the only consumer of the reader adapter. This diff enables an overload of torch::jit::load to load shared_ptr PyTorchStreamReader.
Reviewed By: malfet, houseroad
Differential Revision: D25241904
fbshipit-source-id: aa403bac9ed820cc0e94342aebfe524a1d5bf913
