add interface Identifier to TypedEntity to enable auto generated UID

tools.descartes.dni.core/model/DNIMM3.xcore

...s.dni.core/src/tools/descartes/dni/dnimm3/DNIPackage.java

...dni.core/src/tools/descartes/dni/dnimm3/ITypedEntity.java

...e/src/tools/descartes/dni/dnimm3/impl/DNIPackageImpl.java

...ols/descartes/dni/dnimm3/impl/EndPerformanceTypeImpl.java

...rtes/dni/dnimm3/impl/IntermediatePerformanceTypeImpl.java

...ls/descartes/dni/dnimm3/impl/LinkPerformanceTypeImpl.java

...ore/src/tools/descartes/dni/dnimm3/impl/LinkTypeImpl.java

.../dni/dnimm3/impl/NetworkInterfacePerformanceTypeImpl.java

...s/descartes/dni/dnimm3/impl/NetworkInterfaceTypeImpl.java

...ore/src/tools/descartes/dni/dnimm3/impl/NodeTypeImpl.java

...descartes/dni/dnimm3/impl/SdnNodePerformanceTypeImpl.java

...s/dni/dnimm3/provider/EndPerformanceTypeItemProvider.java

...mm3/provider/IntermediatePerformanceTypeItemProvider.java

.../dni/dnimm3/provider/LinkPerformanceTypeItemProvider.java

...s/descartes/dni/dnimm3/provider/LinkTypeItemProvider.java

...provider/NetworkInterfacePerformanceTypeItemProvider.java

...dni/dnimm3/provider/NetworkInterfaceTypeItemProvider.java

...s/descartes/dni/dnimm3/provider/NodeTypeItemProvider.java

...i/dnimm3/provider/SdnNodePerformanceTypeItemProvider.java