removed library button from navigator

...el.ui/src/org/fortiss/tooling/kernel/ui/internal/.ratings

...tooling/kernel/ui/internal/ModelEditorBindingService.java

.../fortiss/tooling/kernel/ui/internal/NavigatorService.java

...src/org/fortiss/tooling/kernel/ui/internal/views/.ratings

...fortiss/tooling/kernel/ui/internal/views/LibraryView.java

...s/tooling/kernel/ui/internal/views/NavigatorViewPart.java

...fortiss/tooling/kernel/ui/internal/views/library/.ratings

...ing/kernel/ui/internal/views/library/LibraryViewPart.java

...nel.ui/src/org/fortiss/tooling/kernel/ui/service/.ratings

.../fortiss/tooling/kernel/ui/service/INavigatorService.java