Faid/acceptance test entitlements

Refactor the test code based on the Issue: https://gitlab.opengroup.org/osdu/pmc/community-implementation/-/issues/73

Description:

ADR: osdu/platform/ci-cd-pipelines#49

• Move those launchers back to the core, making the core module self-sufficient.
• Made core test classes final forbidding overrides.
• Decouple provider modules from a core-test module. (By moving the refactored module to a new folder)
• Added a common, standards-based configuration for token issuing. (OIDC and direct token injection)
• Added a Readme file with the description of required variables to run tests.
• Added new acceptance job.

How to test:

Via pipeline.

Changes include:

• Refactor (a non-breaking change that improves code maintainability).
• Bugfix (a non-breaking change that solves an issue).
• New feature (a non-breaking change that adds functionality).
• Breaking change (a change that is not backward-compatible and/or changes current functionality).

Changes in:

• Common code

Dev Checklist:

• Added Unit Tests, wherever applicable.
• Updated the Readme, if applicable.
• Existing Tests pass
• Verified functionality locally
• Self Reviewed my code for formatting and complex business logic.

Other comments:

Any comments to approvers here