Replace redis_client with AbstractMessageQueue in EventDispatcher, EventProducer.

[HyeockJinKim]

Motivation  

• To support both message queues seamlessly, the redis_client needs to be replaced to an abstract message queue which can support both kafka and redis_client

Required Features

• Add the kafka service to docker-compose file
• Implement an abstract class for the abstract message queue
• Modify the EventDispatcher and EventProducer accordingly

Impact  

• Affects events.py under common and the docker-compose file

Testing Scenarios  

• Test the message queue feature