notification cleanup interval value changes depending upon replication enabled or not.

Currently we use hive.metastore.event.db.listener.timetolive to determine how long the events are stored in rdbms backing hms. We should have another configuration for the same purpose in context of replication so that we have longer time configured for that otherwise we can default to a 1 day.

hive.repl.cm.enabled can be used to identify if replication is enabled or not. if enabled use the new configuration property to determine ttl for events in rdbms else use hive.metastore.event.db.listener.timetolive for ttl.