Add Arduino library support for ExecuTorch #878

Job	Run time
test-webgpu / test-backend-linux (webgpu, models) / linux-job	18m 19s
test-webgpu / test-backend-linux (webgpu, operators) / linux-job	37m 37s
test-webgpu / test-backend-macos	-8s
test-webgpu / package-golden-artifacts	1m 31s
	57m 19s

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