Increases CI Speed

[FriedJannik]

This commit completely changes the CI workflow:

• Instead of building each component and Docker image sequentially, there are now two separate workflows, each running multiple jobs in parallel.

The new workflows are:

• Build and launch Docker images
• Build and test BaSyx

There are also some minor changes to some test classes where the dirties context was set to AFTER_EACH_TEST_METHOD, which was not actually required. This setting restarted the context after each test, now with the new AFTER_CLASS setting the context is not restarted, improving test time.

In addition changes were made to the Build Plugins in the parent pom.xml:

• Eclipse Dash License Tool is now not run on every build as it takes some time to run.
• JavDoc Generator Plugin is also not run on every build. NOTE: JavaDoc is still Verified, only the HTML Documentation is not generated
  The removed plugins are now only in those build processes where they are required

With these changes we can improve the build time by 250% (or from ~30 minutes to ~12 minutes).