GitLab

Used following commands:
- mvn -Dmaven.test.skip=true package
- java -jar VadereSimulator/target/vadere-console.jar migrate -r VadereModelTests/
- git clean -n
- git clean -f (to delete <scenario_file>.scenario.legacy which is created by migration assistant)

Signed-off-by: hm-schuhba1 <stefan.schuhbaeck@hm.edu>

In "01_unsupported_event_exception_for_unsupported_models.scenario", changed from Reynolds' to OSM model to avoid failing tests in CI pipeline.

Grouped all event tests in directory "VadereModelTests/TestEvents" and lowercased all test files (to be consistent with existing model tests).

Extended "BangEvent" to hold a "Target" and use this new information in "UpdateSchemeEventDriven" and "UpdateSchemeSequential".

New scenario element "AbsorbingArea" is not handled in:
- AbsorbingAreaController (this class is missing completely at the moment).
- MigrationAssistant (must add node '"absorbingAreas" : [ ]' to topography tree).
- DefaultConfig (to be able to change color).
- TikzGenerator (must use "topography.getAbsorbingAreas()" to iterate over the new scenario element).

Added two additional test scenarios:
- wait_event_2_sources_2_targets_osm_event_driven.scenario
- wait_event_recurring_2_sources_2_targets_osm_sequential.scenario

VadereSimulator/tests/org/vadere/simulator/control/events/EventControllerTest.java:
- Adapted unit tests for this logical change.

Added "BangEvent", process it in "CognitionLayer" and added dummy behavior in "UpdateSchemeSequential" and "UpdateSchemeEventDriven".

VadereSimulator/src/org/vadere/simulator/models/potential/combinedPotentials/CombinedPotentialStrategy.java:
- Renamed this interface to "ICombinedPotentialStrategy".
- Added enum "CombinedPotentialStrategy".

Updated also two scenario files.