Add HIP 844: Handling and externalisation improvements for account nonce updates

[SimiHunjan]

Problem

HIP: https://hips.hedera.com/hip/hip-844

Protobuf PR: hashgraph/hedera-protobufs#312

Introduce rules for when to update an Ethereum transaction signer’s nonce and a new field for externalising the nonce update in the record stream. This will help resolve issues where the Consensus nodes and the Mirror nodes are out of sync in regards to what the current value of an account’s nonce is.

Solution

Introduce HIP 844

Alternatives

No response