[WebNN EP] Add support for Op MatMul of WebNN CPU backend

[zesongw]

Enable MatMul support for WebNN CPU backend to support more models.

[zesongw]

@fdwr, @guschmue, PTAL. Thanks!

[guschmue]

/azp run ONNX Runtime Web CI Pipeline

[guschmue]

/azp run Linux CPU CI Pipeline,Linux CPU Minimal Build E2E CI Pipeline,Linux GPU CI Pipeline,Linux GPU TensorRT CI Pipeline,Linux OpenVINO CI Pipeline,Linux QNN CI Pipeline,MacOS CI Pipeline,Windows ARM64 QNN CI Pipeline,Windows CPU CI Pipeline

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[guschmue]

/azp run Windows GPU CI Pipeline,Windows GPU TensorRT CI Pipeline,onnxruntime-binary-size-checks-ci-pipeline,orttraining-linux-ci-pipeline,orttraining-linux-gpu-ci-pipeline,orttraining-ortmodule-distributed,Windows x64 QNN CI Pipeline

[azure-pipelines[bot]]

Azure Pipelines successfully started running 7 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 9 pipeline(s).

[fdwr]

/azp run Linux CPU CI Pipeline,Linux CPU Minimal Build E2E CI Pipeline,Linux GPU CI Pipeline,Linux GPU TensorRT CI Pipeline,Linux OpenVINO CI Pipeline,Linux QNN CI Pipeline,MacOS CI Pipeline,Windows ARM64 QNN CI Pipeline,Windows CPU CI Pipeline

[fdwr]

/azp run Windows GPU CI Pipeline,Windows GPU TensorRT CI Pipeline,onnxruntime-binary-size-checks-ci-pipeline,orttraining-linux-ci-pipeline,orttraining-linux-gpu-ci-pipeline,orttraining-ortmodule-distributed

[fdwr]

/azp run ONNX Runtime Web CI Pipeline,Windows x64 QNN CI Pipeline

[azure-pipelines[bot]]

Azure Pipelines successfully started running 2 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 6 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 9 pipeline(s).

[fdwr]

/azp run Linux CPU CI Pipeline,Linux CPU Minimal Build E2E CI Pipeline,Linux GPU CI Pipeline,Linux GPU TensorRT CI Pipeline,Linux OpenVINO CI Pipeline,Linux QNN CI Pipeline,MacOS CI Pipeline,Windows ARM64 QNN CI Pipeline,Windows CPU CI Pipeline

[fdwr]

/azp run Windows GPU CI Pipeline,Windows GPU TensorRT CI Pipeline,onnxruntime-binary-size-checks-ci-pipeline,orttraining-linux-ci-pipeline,orttraining-linux-gpu-ci-pipeline,orttraining-ortmodule-distributed

[fdwr]

/azp run ONNX Runtime Web CI Pipeline,Windows x64 QNN CI Pipeline

[azure-pipelines[bot]]

Azure Pipelines successfully started running 2 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 6 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 9 pipeline(s).

[fdwr]

Flaky test failure appears unrelated. Rerunning. "ModuleNotFoundError: No module named 'onnx'"

[Honry]

Flaky test failure appears unrelated. Rerunning. "ModuleNotFoundError: No module named 'onnx'"

:( @fdwr, is it resolved now?

[guschmue]

/azp run Big Models

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).