Topic to table Multiplexing no supported

[mailmahee]

Issue:
Currently, we create the table in Scylla automatically with the same name as the topic in Kafka. If the table is already created with the corresponding name then we simply use it. One request that came in from a customer is that - if we want to use the data in a topic and store the content into multiple tables, it is not currently possible. Even though this is a not-so-common feature request - I am adding this so I can track the issues.