feat: `nargo expand` to show code after macro expansions #21303

Job	Run time
build-nargo	1m 28s
build-noirc-abi	1m 28s
build-noir-execute	1m 28s
yarn-lock	1m 10s
Load critical library list	4s
build-acvm-js	1m 28s
build-noir-wasm	1m 18s
noirc_abi	1s
ACVM JS (Browser)	1s
ACVM JS (Node.js)	1s
Integration Tests (Browser)	1s
Noir JS	1s
noir_wasm	1s
Integration Tests (Node)	1s
noir_codegen	1s
Compile `noir-contracts` zero inliner aggressiveness	1s
Check external repo - ${{ matrix.repo }}/${{ matrix.path }}	1s
Example scripts	1s
Upload critical library report	8s
End	1s
	8m 44s

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