`Programming Exercise`: Show static code analysis- and submission policy-related automatic feedbacks properly

[terlan98]

Currently, we use the testCase.testName, text and detailText properties of automatic feedbacks to show them on the correction sidebar. However, we do not have any logic for handling automatic feedback related to SCA or submission policy issues. Such feedbacks contain prefixes in their text field defined in Feedback.java:

We should check for these prefixes and handle them.

This is how the automatic feedbacks with test cases currently look:

This issue was reported by @Strohgelaender