In "run_vadere_console_with_all_scenario_files.py", run ALL scenario files, catch exceptions and log exceptions.

Exit with return code 1 if at least one test failed. Otherwise, return 0.

In "run_vadere_console_with_all_scenario_files.py", print runtime (in seconds) for each scenario file.

Moved CI helper scripts to "Tools/ContinuousIntegration" and enabled Java assertions in POM files and helper scripts.

.gitlab-ci.yml:
- Refactored complete file: moved comment on top of file.
- Call helper scripts in "Tools/ContinuousIntegration" instead of just "Tools".

Tools/ContinuousIntegration/run_vadere_console_with_all_scenario_files.py:
- Execute scenario files alphabetically.
- Use "-enableassertions" when invoking Java.

POM files:
- Use "<enableAssertions>true</enableAssertions>" to be independent of SureFire's default settings.

In "run_vadere_console_with_all_scenario_files.py", exclude scenarios for "TESTOVM" because they are outdated.

Renamed "run_vadere_console_with_all_scneario_files.py" to "run_vadere_console_with_all_scenario_files.py" and call it in ".gitlab-ci.yml".