add Github Actions unit-test pipeline

[gosunilgo]

Overview

CI - Add simple github-actions pipeline node 10x, 12x, 14x

Testing recommendations

Github actions pipeline ran successful

GitHub issue number

Minor enhancement / no issue

Related Pull Requests

Checklist

• [ x] Code is written and works correctly;
• [ x] Changes are covered by tests;
• [x ] Documentation reflects the changes;
• [ x] Update rebar.config.script with the correct tag once a new Fauxton release is made