setup the test with maven

Setup the test with maven for the purpose of gitlab runner

Add the required dependencies in the pom.xml

The Java version should be the same in both maven configuration while installing(maven.sh) and maven project(pom.xml)

Make java 8 to be the default in pom.xml

add ReadMe how to install dependencies and run the project with mvn commands

Fix the issue #9 (closed)

Closes #18 (closed)