Merge branch 'develop'

.gitignore

.idea/encodings.xml

CONTRIBUTING.md

CentralModel.xml

archimate3_model.xsd

src/de/example/main/ModelUnmarshaller.java

src/de/example/model/Access.java

src/de/example/model/AccessTypeEnum.java

src/de/example/model/Aggregation.java

src/de/example/model/AndJunction.java

src/de/example/model/ApplicationCollaboration.java

src/de/example/model/ApplicationComponent.java

src/de/example/model/ApplicationEvent.java

src/de/example/model/ApplicationFunction.java

src/de/example/model/ApplicationInteraction.java

src/de/example/model/ApplicationInterface.java

src/de/example/model/ApplicationProcess.java

src/de/example/model/ApplicationService.java

src/de/example/model/Artifact.java

src/de/example/model/Assessment.java