Integration testing: Experimentation with Arquillian and Testcontainers

[poikilotherm]

During the development of #9229 it became more and more evident that to create an integration test for this kind of functionality, we need a different setup of testing than our well known "unit tests + API tests".

This issue is a collection of ideas and experimentation to introduce more advanced integration testing using container technology (Docker) and frameworks like Testcontainers and Arquillian.

Doc links:

• https://docs.payara.fish/community/docs/Technical%20Documentation/Ecosystem/Connector%20Suites/Arquillian%20Containers/Payara%20Server%20Remote.html
• https://dzone.com/articles/integration-tests-with-arquillian-extensions-on-the-payara-platform
• https://github.com/arquillian/arquillian-core/issues/388
• https://github.com/hantsy/arquillian-autodeployment-example

[poikilotherm]

Doing some experimentation as part of #7424 revealed payara/ecosystem-support#66 needs to be addressed first