Implement BytesWritable in DataWritableWriter Class in parquet

Implement BytesWritable in org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriter Class in parquet .
writePremitive() api of this class has major Writable but not BytesWritable (Note - it has ByteWritable which is just 1 byte) . So we have to use the binaryWritable class . However binaryWritable does not have the set function which means for each record we have to call new (no of times string data type occurs ).

**Reporter**: [Suresh Bahuguna](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=subahugu)

_{**Note**: *This issue was originally created as [PARQUET-795](https://issues.apache.org/jira/browse/PARQUET-795). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

Inizia da org.apache.hadoop.hive.ql.io.parquet.write.DataWritableWriter e analizza writePremitive() insieme alla gestione esistente di Writable. Verifica come viene utilizzato binaryWritable per i dati stringa, quindi verifica che i valori BytesWritable vengano gestiti senza richiedere un nuovo oggetto per ogni record; l'issue è completata quando questo supporto è coperto dai test pertinenti.

Scritto dal modello di indicizzazione a partire dal testo della issue.