image_annotation/commit

start with schema and proper namespace for annotation interface vocabulary

 rdf/annotation_ui_example.ttl |  4 ++++
 rdf/annotation_ui_schema.ttl  | 18 ++++++++++++++++++
 rdf/void.ttl                  | 14 ++++++++++++++
 3 files changed, 31 insertions(+), 5 deletions(-)