add example code and json resource.
plus)
Add ECTOR_BACKEND="default" Environment variable
because cairo backend is not supported.
Depends on
D9218 Ector.Renderer : Implement Ector.Renderer.(Software).Image class
D9219 Efl.Canvas.Vg : Implement Efl.Canvas.Vg.Image class
D9220 vg_common_json : Support image data of node