Add the function `setStrokeStyle`, `beginPath`, `moveTo`, `lineTo`, `closePath`, `arc`, `arcAC`, `fill`, `stroke` to the canvas module.
Add the function `setStrokeStyle`, `beginPath`, `moveTo`, `lineTo`, `closePath`, `arc`, `arcAC`, `fill`, `stroke` to the canvas module.

duplode/threepenny-gui,duplode/threepenny-gui,duplode/threepenny-gui