Management operations for accessing transaction logs should be exposed in the web console

Task AS7-925 provides CLI management operations for accessing transaction logs.

We need the same information to be made available in the web console.

The operations are part of the log store sub model:

org.jboss.as.txn.subsystem.LogStoreAddHandler

We also need to expose the attribute for switching our log store implementation:

TransactionSubsystemRootResourceDefinition.USEHORNETQSTORE