Emit preimages

[i-norden]

• Add a new AddressesAndAddressHashes collection to the statediff payload that holds the addrHash=>addr pairs like the codehash=>code pairs here

• Populate this collection with the address and address hash every time a new account is created in the trie e.g. here

• Extend this to the complete trie methods i.e. BuildStateTrieObject

• Extend this to the direct indexing approach introduced in Write IPLD secondary indexes directly to Postgres #32, mode where we write addresshash=>address directly to Postgres during ongoing sync

[i-norden]

Related #42

[i-norden]

Closing, we can reopen if we want to add this feature in the future