Making contracts `memory-safe` #364

Job	Run time
verify (verifyOwners.sh)	20m 2s
verify (verifySafe.sh)	5m 26s
verify (verifyModules.sh)	10m 34s
verify (verifyNativeTokenRefund.sh)	3m 56s
verify (verifySignatures.sh)	4m 45s
	44m 43s

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