accept arbitrary number of rows per tuple in storm-cassandra

Current implementation in `TridentResultSetValuesMapper::map` restricts a SELECT query to return one row. In `StateQueryProcessor::finishBatch`, it checks the equality between the result size of `batchRetrieve` and input tuple size. When the number of result rows is less than 1 or greater than 1, it breaks the condition and an exception is thrown.

We should accept arbitrary number of rows by adjusting List dimensions.