onnxruntime

c5de900f - Fix undefined symbol for IExternalDataLoader in CUDA shared provider

Fix undefined symbol for IExternalDataLoader in CUDA shared provider Add IExternalDataLoader::LoadTensor implementation to provider_bridge_provider.cc so that the vtable/typeinfo is available in libonnxruntime_providers_cuda.so. This follows the same pattern used for IDataTransfer. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>