Start refactor (still errors)
Partial refactor: inheritance via ClassifierType instead of ClassDeclaration. (still some errors left)
Moved behaviour from ClassDeclaration to Classifier.
Fixed InheritanceDefinition specification. (search scope still needs fixing)
Clean up, import updates, fixes mbeddr 3 migration
Inheritance from templated class
Merged qutorial zplusplus master.
Fixed model check errors.