Add truncate statements and all table DDL to avrorouter

MariaDB to Hadoop replication (Replication to Kafka brokers)

A Customer is using MaxScale to replicate to Hadoop through Kafka. They are asking that the ability to send truncate statements and all table DDL be added to what is sent to Kafka.

The customer has implemented the solution using Maxscale 2.0.5 and it delivered CDC for inserts, updates and deletes.

They would like to also capture truncate statements and all table DDLs (create table, add column, modify column and drop column to begin with).