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.

This reverts commit 7b1da6cf.

.gitlab-ci.yml:
- Use "mvn <options> <phase>" syntax consequently like mentioned in "mvn --help".

Also refactored code a little bit:
- Now, "generatePathForScenarioElement()" does not close the path with "to cycle;".
  Instead, the caller must close the path by appending "to cycle" or simply ";" (which is required for trajectories).

This is necessary because ode algorithm will loop forever if two
dynamic elements overlap in this way.

In "run_vadere_console_with_all_scenario_files.py", exclude scenarios for "TESTOVM" because they are outdated.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

In ".gitlab-ci.yml", skip unit testings in job "run_scenario_files" because on virtual maching OpenCl tests fail.

In ".gitlab-ci.yml", added job "run_scenario_files" which is invoked during GitLab's "deploy" stage.

In "VadereConsole", return with "System.exit(-1)" if an exception is thrown to inform calling process.

# Conflicts:
#	.gitlab-ci.yml

trajectory reading: replace String#split by a combination of String#indexOf String#substring to avoid costly pattern matching.

trajectory reading: replace String#split by a combination of String#indexOf String#substring to avoid costly pattern matching.

add some comments for the docu, refactoring of duplicated code, improve…

See merge request !31

add some comments for the docu, refactoring of duplicated code, improve performance of the transformation of the output into trajectory jave objects.

# Conflicts:
#	VadereSimulator/src/org/vadere/simulator/projects/ScenarioRun.java