[WIP] Stateful statediff

[kpp]

Description

Now instead of storing [address balance nonce code_hash] we store [address diff(balance) diff(nonce) diff(code_hash)]. When nonce/code_hash are not changed, they take 1 byte. And some heuristics to find a diff are implemented.So for a transfer tx we went from [20 + 32 + 8 + 33] + [20 + 32 + 8 + 33] bytes to [20 diff 2 1] + [20 diff 1 1], where diff for balance e.g. (before 4283200000, after 1232308282) is packed into 5 bytes. So 93+93 bytes went to 28+27.

• Compress evm::Account { balance, nonce }
• Compress evm::Account { code_hash } - Stateful Statediff: Implement code_hash Compressor #1510
• Compress evm::Account::storage { value }
• Stateful Statediff: Implement Compressors' combination #1508
• Stateful Statediff: RepeatedWrites (compress keys) #1512 (hard)

Easy to implement (see #1132):

• parse into typed: SetL1Hash
• parse into typed: SetLatestBlockHash
• parse into typed: RemoveLatestBlockHashRange
• parse into typed: SetHead(Block)
• parse into typed: SetScreData(RuleEnforcerData)
• parse into typed: SetSovAccountPublicKey([u8; 32], [u8; 32])
• parse into typed: RemoveSovAccountPublicKey([u8; 32])
• parse into typed: SetSovAccount([u8; 32], SovAcc)
• parse into typed: RemoveSovAccount([u8; 32])

To implement RepeatedWrites we need to scan writes, if:

• there is no write in Db -> assign unique u32 id and store it in db
• there was a write and it has a u32 id -> provide that id into compute_state_update

Linked Issues

• Fixes Implement a PoW stateful statediff #1499 R&D: Typed StateDiff + compression #1132
• Related to Meta: Stateful StateDiff  #1237