remove generics from abstract metamodel
abstract metamodel impl
abstract enumeration impl
Merge branch 'attempt3' of https://github.com/radke-tum/idp.git into views
tempcommit
Merge branch 'attempt3' of https://github.com/radke-tum/idp.git into views
rename nodetype and rename edge type transformations fully implemented
Merge branch 'attempt3' of https://github.com/radke-tum/idp.git into
attempt3

Conflicts:
	pssif/pssif.core/src/main/java/de/tum/pssif/core/metamodel/impl/AttributeGroupImpl.java
	pssif/pssif.core/src/main/java/de/tum/pssif/core/metamodel/impl/EdgeTypeImpl.java
	pssif/pssif.core/src/main/java/de/tum/pssif/core/metamodel/impl/ElementTypeImpl.java
	pssif/pssif.core/src/main/java/de/tum/pssif/core/metamodel/impl/NodeTypeImpl.java
	pssif/pssif.transform/src/main/java/de/tum/pssif/transform/metamodel/ViewedMetamodel.java
	pssif/pssif.transform/src/main/java/de/tum/pssif/transform/metamodel/alternatives/NodeTypeRenamingTransformation.java
	pssif/pssif.transform/src/main/java/de/tum/pssif/transform/metamodel/alternatives/RenamingTransformation.java
	pssif/pssif.transform/src/main/java/de/tum/pssif/transform/metamodel/alternatives/View.java
	pssif/pssif.transform/src/main/java/de/tum/pssif/transform/metamodel/alternatives/ViewImpl.java
	pssif/pssif.transform/src/main/java/de/tum/pssif/transform/metamodel/alternatives/WrappingElementType.java
	pssif/pssif.transform/src/main/java/de/tum/pssif/transform/metamodel/alternatives/WrappingNodeType.java