Extend rewriter to handle subgraphs #10673

Job	Run time
update_readme	5s
build_docs (windows-latest)	4m 59s
build_docs (ubuntu-latest)	3m 50s
test (windows-latest, py311-torch-nightly)	4m 40s
test (ubuntu-latest, py311-torch-nightly)	3m 11s
test (ubuntu-latest, py311)	3m 38s
test (ubuntu-latest, py310)	3m 44s
test (ubuntu-latest, py311-ort-nightly)	3m 54s
test (windows-latest, py311)	3m 54s
test (windows-latest, py311-onnx-weekly)	3m 57s
test (windows-latest, py310)	3m 31s
test (macos-latest, py312)	7m 39s
test (macos-latest, py311-ort-nightly)	6m 27s
test (macos-latest, py311-torch-nightly)	28m 53s
test (macos-latest, py310)	8m 38s
test (windows-latest, py311-ort-nightly)	3m 56s
test (macos-latest, py311)	1m 38s
test (macos-latest, py311-onnx-weekly)	1s
test (ubuntu-latest, py311-onnx-weekly)	3m 44s
test (windows-latest, py311-onnx-ir-git)	3m 34s
test (windows-latest, py312)	4m 31s
test (ubuntu-latest, py312)	3m 49s
test (macos-latest, py311-onnx-ir-git)	2m 8s
test (ubuntu-latest, py311-onnx-ir-git)	3m 44s
	1h 58m 5s

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