feat: `MsgToL1` hash computation #210

Job	Run time
Build starknet-ff features	32s
Build starknet-curve features	14s
Build starknet-crypto-codegen features	12s
Build starknet-crypto features	42s
Build starknet-core features	50s
Build starknet-providers features	1m 9s
Build starknet-signers features	1m 3s
Build starknet-accounts features	55s
Build starknet-contract features	1m 30s
Build starknet-macros features	40s
Build starknet features	2m 57s
	10m 44s

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