Remaining non-UI kernel services moved to OSGi declarative services.

...tiss/tooling/base/library/ModelElementLibraryService.java

.../tooling/kernel/internal/ConnectionCompositorService.java

...iss/tooling/kernel/internal/ConstraintCheckerService.java

...ooling/kernel/internal/ConstraintVerificationService.java

...iss/tooling/kernel/internal/ElementCompositorService.java

...c/org/fortiss/tooling/kernel/internal/LibraryService.java

...org/fortiss/tooling/kernel/internal/PrototypeService.java

...ortiss/tooling/kernel/internal/ToolingKernelInternal.java

.../tooling/kernel/service/IConnectionCompositorService.java

...iss/tooling/kernel/service/IConstraintCheckerService.java

...ooling/kernel/service/IConstraintVerificationService.java

...iss/tooling/kernel/service/IElementCompositorService.java

...c/org/fortiss/tooling/kernel/service/ILibraryService.java

...c/org/fortiss/tooling/kernel/service/ILoggingService.java