feat: `MsgToL1` hash computation #135

Job	Run time
Build starknet-ff features	1m 9s
Build starknet-curve features	29s
Build starknet-crypto-codegen features	39s
Build starknet-crypto features	39s
Build starknet-core features	1m 29s
Build starknet-providers features	1m 40s
Build starknet-signers features	51s
Build starknet-accounts features	1m 49s
Build starknet-contract features	1m 39s
Build starknet-macros features	53s
Build starknet features	2m 30s
	13m 47s

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