Support for the target HA database

If CMT migrate some schema and data into the HA database by online jdbc migration,
it can't be migrate completely into the replicated database because of no Primary key.
CMT will migrate schema without indexes and primary key and some constraints because of migration performance.

It should be needed the checkbox to check whether HA mode or not on selecting target database step.
If it checked HA mode, it should be created schema and primary key at first.