2nd Release with external secrets and configs

Merge pull request #11 from bindian0509/externalizing-configurations

Completion of Externalization of Config! 😴

First Release with Mock Twitter Stream and Kafka Send

• Contains Mock Twitter Stream that produces tweets in fixed intervals based on jumbled words
• Kafka Producer that sends kafka to - twitter-topics on 3 nodes with 1 schema registry
• Docker based image generation of twitter to kafka functionality, to use put these commands
  • mvn clean install // this will create the image (make sure docker is running)
  • cd docker-compose && docker compose up // to run the images and spring application inside docker as container
• Advanced changes with respect to new versions of spring and spring-kafka
  • kafkaTemplate.send() method sending CompletableFuture instead of ListenableFuture
  • webClient implementation in getSchemaRegistryStatus() changed from exchange to retrieve with toBodilessEntity mapping Mono response to HttpStatus