Refactor JUnit feature

[dnestoro]

This PR:

• removes hardcoded lists for initializeAtBuildtime
• removes launcher and testPlan from ImageSingletons
• computes testPlan at runtime
• register interfaces for reflection to solve Interfaces implemented by test classes are not registered for reflection #636
• adds support for @FieldSource annotations to solve Add support for @FieldSource for @ParameterizedTest methods #638

[melix]

Thanks David. Can you give a description of the changes that this makes? For example you mention that the tests are discovered at runtime but in practice you are still using the test-ids.

There are changes which need to be reverted on the samples: build plugins versions and maven repositories.

[dnestoro]

Thanks David. Can you give a description of the changes that this makes? For example you mention that the tests are discovered at runtime but in practice you are still using the test-ids.

There are changes which need to be reverted on the samples: build plugins versions and maven repositories.

Hey @melix the PR is not ready yet (it is in draft state). I will update PR description and revert unnecessary changes after I finish testing.