Add NPU support for wasi-nn WinML backend.

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Add NPU support for wasi-nn WinML backend. #8756

Open jianjunz opened 1 month ago

jianjunz commented 1 month ago

This change adds support for NPU (Neural Processing Unit) to the wasi-nn WinML backend. Since NPU support in DirectML is still in developer preview, only a subset of learning models are supported.

This change also adds support for tensor type FP16 and I64.