Check additional consensus rules for ZSAs in zebra-state

[arya2]

Motivation

ZIP 226: Additional Consensus Rules specifies additional consensus rules for contextually validating ZSA actions. These checks must be implemented for ZSAs to work as expected in Zebra.

Design

The additional consensus rules should be validated before committing blocks to the non-finalized state. These checks could go in a new issuance sub-module of zebra_state::service::check.

Testing

The additional consensus checks will require new tests for the check::issuance module similar to those for the check::nullifier module.