v1.0.0-rc.3

• Improved render performance by ~24%
• Implemented new clip lifecycle with the following phases:
  • constructor: invoked first, during the initialization of the clip. This is where the initial state and values should be set up.
  • init: called asynchronously before the Clip is added to a track/composition.
  • enter: triggered right before the Clip is drawn to the canvas.
  • update: called on every redraw of the clip.
  • exit: called after the Clip has been drawn to the canvas for the last time.