Reorganize MariaDBServer code

The server-class keeps growing, so the additional classes are moved out of
the main class file.

server/modules/monitor/mariadbmon/mariadbmon_common.cc

@@ -32,23 +32,3 @@ void DelimitedPrinter::cat(string& target, const string& addition)
     target += m_current_separator + addition;
     m_current_separator = m_separator;
 }
-
-ClusterOperation::ClusterOperation(OperationType type,
-                                   MariaDBServer* promotion_target, MariaDBServer* demotion_target,
-                                   bool demo_target_is_master, bool handle_events,
-                                   string& promotion_sql_file, string& demotion_sql_file,
-                                   string& replication_user, string& replication_password,
-                                   json_t** error, maxbase::Duration time_remaining)
-    : type(type)
-    , promotion_target(promotion_target)
-    , demotion_target(demotion_target)
-    , demotion_target_is_master(demo_target_is_master)
-    , handle_events(handle_events)
-    , promotion_sql_file(promotion_sql_file)
-    , demotion_sql_file(demotion_sql_file)
-    , replication_user(replication_user)
-    , replication_password(replication_password)
-    , error_out(error)
-    , time_remaining(time_remaining)
-{
-}