Feature/cli module refactoring

[TwoOfTwelve]

Contains a big refactoring of the cli module. In specific:

• Minor refactoring all over the module based on Intellijs code analysis.
• A rewrite of the CollectedLogger class, because the base interface we used is deprecated since 2020.
• The CLI class has been split up into multiple classes.
• The CLI class now uses interfaces for access to JPlag. This can be used to write more and better unit tests.

[TwoOfTwelve]

The three remaining sonarcloud issues already existed and cannot be fixed. Unless we want to remove the legacy support for the old submission directories.

[TwoOfTwelve]

@tsaglam could you take another look at this?

[TwoOfTwelve]

I have tested it with a short example. The formatting of the log output might have changed slightly, but the content is definitely still the same.

[sonarqubecloud[bot]]

Quality Gate passed for 'JPlag Plagiarism Detector'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
68.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud