Transactions handling to plug on top of the network service.
Usage:
- Use [
TransactionsHandlerPrototype::new] to create a prototype. - Pass the
NonDefaultSetConfigreturned from [TransactionsHandlerPrototype::new] to the network configuration as an extra peers set. - Use [
TransactionsHandlerPrototype::build] then [TransactionsHandler::run] to obtain aFuturethat processes transactions.