feat: add `Expr::as_binary_op` #10963

Job	Run time
build-nargo	2m 42s
build-noirc-abi	1m 23s
build-noir-wasm	3m 58s
build-acvm-js	1m 43s
noirc_abi	2m 30s
ACVM JS (Browser)	1m 14s
ACVM JS (Node.js)	36s
Check external repo - zac-williamson/noir-edwards	6s
Noir JS	1m 20s
Example scripts	19s
noir_codegen	57s
Integration Tests (Node)	2m 16s
noir_wasm	1m 57s
Integration Tests (Browser)	2m 16s
End	1s
	23m 18s

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