Release 0.16.0

Main Enhancements

• Enhanced UML class model and PlantUML diagram generation
• Updated the Overarch data model and the documentation

Changelog

• attention: changed export folder structure for views
• changed id generation of plantuml views to make the plantuml output
  location more reasonable
• added rendering of cardinalities for fields in UML class diagrams
• enhanced enum modelling and rendering in UML class diagrams
• enhanced method modelling, added parameters
• extracted criteria predicates to named functions
• added selection criteria
• updated overarch data-model and documentation