BitOps Unit Tests

[arm4b]

The main Bitops logic is codified in python since v2.0.
This should be covered by the tests to ensure the project quality is at the desired level and we're verifying the business logic in an automatic way leaving no room for regressions while trying the user stories & cases, finding bugs, and as the future development progresses.

Delivery of this task:

• bootstrap the initial unit test framework #412
• add first unit tests #415
• Add CI in GH Actions #412
• TESTS
  • utilities.py
  • settings.py
  • config/parser.py
  • config/schema.py
  • config/cli.py

code coverage framework and reaching specific coverage % will be part of next tasks.