Polishing of draft wb

[yorik]

very nice looo!

[looo]

Thanks yorik. I will also try to finally add a high-level interaction-tool to pivy. This should be a centralized method for highlighting, selecting, dragging (like it is currently available in the sketcher). I think it could be useful for the draft-edit tool.

example of what I have in mind can be seen here: https://vimeo.com/153939513