Initialize kaf2es project

* pom.xml (added)
* src/main/java/com/ktcloudware/kafka2es/Kafka2Es.java (added)
* src/main/java/com/ktcloudware/kafka2es/Kafka2EsMultiConsumer.java (added)
* src/main/java/com/ktcloudware/kafka2es/esclient/ESBulkRequsetHandler.java (added)
* src/main/java/com/ktcloudware/kafka2es/kafkaclient/KafkaGroupedConsumer.java (added)
* src/main/java/com/ktcloudware/kafka2es/kafkastream/KafkaStreamHandler.java (added)
* src/main/java/com/ktcloudware/kafka2es/kafkastream/KafkaStreamJob.java (added)
* src/main/java/com/ktcloudware/kafka2es/kafkastream/KafkaStreamJobImplES.java (added)
* src/main/java/com/ktcloudware/kafka2es/kafkastream/KafkaStreamJobImplStdout.java (added)
* src/main/java/com/ktcloudware/kafka2es/kafkastream/KafkaStreamJobResult.java (added)
* src/main/resource/kafka2es.sh (added)
* src/test/java/com/ktcloudware/kafka2es/esclient/ESBulkRequsetHandlerTest.java (added)
* src/test/java/com/ktcloudware/kafka2es/kafkaclient/KafkaConsumerGroupTest.java (added)
* src/test/java/com/ktcloudware/kafka2es/kafkastream/KafkaStreamHandlerTest.java (added)
* src/test/java/com/ktcloudware/kafka2es/kafkastream/KafkaStreamJobImplStdoutTest.java (added)