Improve code-coverage & add GH check action

[miroslavpojer]

Background

Improve or add code coverage support to be able measure code quality.

Feature

New ability to measure current code coverage as one of QA metrics. Add GH action to check changed file coverage.

[miroslavpojer]

Release notes proposal:

325 - Add code coverage support improve

• Added support for code coverage GitHub action check as part of PR.
• Used Absa fork of JaCoCo solution - with scala method filtering.