goplan9/draw: provide MoveTo (set mouse position) It was already in drawfcall; just needed to wrap it.
goplan9/draw: provide MoveTo (set mouse position)
It was already in drawfcall; just needed to wrap it.

R=rsc
CC=r, rsc
https://codereview.appspot.com/12742043

cmars/tools,cmars/tools,cmars/tools,cmars/tools