feat: add mutating FunctionDefinition functions #10720

Job	Run time
build-acvm-js	1m 24s
build-nargo	3m 32s
build-noirc-abi	1m 37s
build-noir-wasm	3m 58s
ACVM JS (Browser)	1m 21s
ACVM JS (Node.js)	35s
noirc_abi	1m 40s
Check external repo - zac-williamson/noir-edwards	4s
noir_codegen	58s
Noir JS	1m 14s
Example scripts	20s
Integration Tests (Browser)	2m 30s
noir_wasm	1m 57s
Integration Tests (Node)	2m 26s
End	1s
	23m 37s

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