## What changes were proposed in this pull request?
Now, DirectKafkaWordCount example is not support to visit kafka using kerberos authentication. Add Java/Scala DirectKerberizedKafkaWordCount.
## How was this patch tested?
Use cmd to visit kafka using kerberos authentication.
```
$ bin/run-example --files ${path}/kafka_jaas.conf \
--driver-java-options "-Djava.security.auth.login.config=${path}/kafka_jaas.conf" \
--conf "spark.executor.extraJavaOptions=-Djava.security.auth.login.config=./kafka_jaas.conf" \
streaming.DirectKerberizedKafkaWordCount broker1-host:port,broker2-host:port \
consumer-group topic1,topic2
```
Closes#25412 from hddong/example-streaming-support-kafka-kerberos.
Lead-authored-by: hongdd <jn_hdd@163.com>
Co-authored-by: hongdongdong <hongdongdong@cmss.chinamobile.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
c02c86e4e8