[pallet-revive] Re-export account and code info structs

[cmichi]

Are you up for re-exporting these info structs publicly? We query the following storage items in cargo contract info and use the result to compile information about an on-chain contract:

/// A mapping from a contract's code hash to its code info.
#[pallet::storage]
pub(crate) type CodeInfoOf<T: Config> = StorageMap<_, Identity, H256, CodeInfo<T>>;

/// The data associated to a contract or externally owned account.
#[pallet::storage]
pub(crate) type AccountInfoOf<T: Config> = StorageMap<_, Identity, H160, AccountInfo<T>>;

Making them public would allow us to depend on the re-exports, avoiding having to copy them.

cc @athei @pgherveou

[pgherveou]

Aren't you using the generated metadata subxt types for these storage in cargo contract?

[cmichi]

Aren't you using the generated metadata subxt types for these storage in cargo contract?

We are using the metadata, but not for that particular functionality. I'm not sure if amything prevented using it.