Implemented TK 13/1
Implemented StudentCatalogEditor and StudentModel
Added Files:
ox/resource/de/fhworms/ztt/ox/resources/bundles/StudentCatalogEditor.properties
ox/resource/de/fhworms/ztt/ox/resources/bundles/StudentEditPane.properties
ox/src/java/de/fhworms/ztt/ox/campusdatarepository/StudentModel.java
ox/src/java/de/fhworms/ztt/ox/examadministrationclient/StudentCatalogEditor.java
ox/src/java/de/fhworms/ztt/ox/examadministrationclient/StudentEditPane.java
ox/src_test/java/unit/de/fhworms/ztt/ox/campusdatarepository/StudentModelTest.java
