Powdr Input Deserialization

[CeciliaZ030]

Describe the feature request

Serialize input when feeding data from raiko-host to powdr guest

Example usage of deserialization:

• https://github.com/powdr-labs/powdr-revme/blob/bfd3f7584ebc942043be377a1ecd2bfa641fe69a/evm/src/lib.rs#L29
• https://github.com/powdr-labs/powdr-revme/blob/bfd3f7584ebc942043be377a1ecd2bfa641fe69a/bin/src/main.rs#L82

Modify powdr guest's main referencing SP1 guest's main.
Feed data in from the host's Powdr's driver referencing SP1's driver
Note that in our client code the data should deserialize to:

// TODO: figure out what the integer does and how much should be
let input: Input<EthereumTxEssence> = get_data_serde(999);
let sys_info: TaikoSystemInfo = get_data_serde(888);

Make PR against https://github.com/CeciliaZ030/zeth/tree/multi-guest

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[petarvujovic98]

@CeciliaZ030 Thanks for the additional information, I'll create a PR today