Add Arduino library support for ExecuTorch #1285

Job	Run time
test-webgpu / test-backend-linux (webgpu, models) / linux-job	16m 28s
test-webgpu / test-backend-linux (webgpu, operators) / linux-job	17m 1s
test-webgpu / test-backend-macos	-8s
test-webgpu / package-golden-artifacts	1s
	33m 22s

Provide feedback