Issue 121 build with maven

[Alexander72]

Hi, I added the possibility to build the project using Maven.

Motivation

121

What

Added pom.xml file with all the dependencies so now project can be built using Maven as well as Gradle; Updated README.md, added information in there on how to build the project using Maven.

Why

To make it possible to build project using not only Gradle but also Maven

How

By adding a pom.xml file - the configuration file that is being used by Maven

Verification Steps

Follow steps in README to build the project using Maven

1. open your terminal in the project root folder
2. run mvn package
3. find built JAR file in the target folder

Checklist:

• [X] Code has been tested locally by PR requester
• [-] Changes have been successfully verified by another team member

Progress

• [x] Finished task

[pb82]

Verified, mvn package and mvn test both work. Thanks @Alexander72