Fix inserting fraud transactions to database issue

Optimized consumer container performance

Migrate from bitnami spark image to spark python image and update README.MD

Merge branch 'main' of https://github.com/ISE-S46/CCFD

Update license badge

Create LICENSE

Update README.MD and README images

Add grafana in docker-compose.yml for graph plotting as an alert system

Add inserting log to database

Add transaction date time to consumer output and fix producer checkpoint behavior

Fix checkpoint not working and add PostgreSQL container to docker-compose.yml

Add realtime transaction sitmulation with kafka and zookeeper

Add pipeline model evaluation for fraudTest.csv

Add pipeline based on result from TrainModel.ipynb

Initial refractoring