reworked kernel services, added base class for extension point driven services

org.fortiss.tooling.kernel/trunk/META-INF/MANIFEST.MF

org.fortiss.tooling.kernel/trunk/plugin.xml

...rtiss.tooling.kernel/trunk/schema/modelEditorBinding.exsd

...rc/org/fortiss/tooling/kernel/base/EditorBindingBase.java

...rc/org/fortiss/tooling/kernel/interfaces/ICompositor.java

.../org/fortiss/tooling/kernel/interfaces/IEObjectAware.java

...org/fortiss/tooling/kernel/interfaces/IEditorBinding.java

...rg/fortiss/tooling/kernel/internal/CompositorService.java

.../fortiss/tooling/kernel/internal/EObjectAwareService.java

...rc/org/fortiss/tooling/kernel/internal/EditorService.java

...fortiss/tooling/kernel/internal/editor/BindingEditor.java

...oling/kernel/internal/editor/ModelElementEditorInput.java

...c/org/fortiss/tooling/kernel/services/IEditorService.java