feat: allow passing custom foreign call handlers when creating proofs in NoirJS #697

Job	Run time
build-acvm-js	3m 13s
build-noirc-abi	3m 29s
build-nargo	2m 14s
build-noir-wasm	5m 16s
source-resolver	31s
ACVM JS (Node.js)	17s
ACVM JS (Browser)	1m 18s
Noir JS	1m 21s
noirc_abi	28s
noir_codegen	39s
noir-js-backend-barretenberg	1m 40s
noir_wasm	58s
Integration Tests	8m 41s
End	1s
	30m 6s

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