This adds ObjectInspectorNodeInterface as the toplevel root class which doesn't take an object as the input parameter, which is not needed in some cases. Change-Id: I6a5cc4f9108cbd2dcab6d1b32e0a7a83cd838779 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/110738 Tested-by: Jenkins Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>