Implement dialogs to edit SpecIF classes #14
Description
As a project manager or project administrator I want to interactively create, update and delete SpecIF classes.
- Every SpecIF project defines dataTypes, propertyClasses, resourceClasses and statementClasses.
- So far, the classes must be edited with a text-editor in the specif-file in JSON format.
- Some changes are always possible even interactively, such as adding a class.
- Others may be in conflict with existing resource and statement instances. Such changes shall be explicitly forced including an update of all references and instances. If a propertyClass is removed, for example, it must be deleted from all referencing resourceClasses and statementClasses ... and the corresponding properties from all their instances.