Release 0.2.2

Added

• #23 Add images to the description files.
• #46 Add CONTRIBUTING.MD, CODE_OF_CONDUCT.md and CODE_STYLE.md

Changed

• #27 Fix [WARNING] Maven-shade-plugin overlapping classes and upgrade SonarRuntime.
• #33 Update plugin description in code
• #42 Fix Crash SonarQube analysis because of some ClassCast Exceptions
• #48 correction SONAR issue info - delete public keyword on tests
• Improve "build" Github actions to execute checks on branches from fork repositories