Smooth transition for VideoView capture position update

[hiroshihorie]

When capture position update is detected:

1. Creates a secondary renderer view in the back of primary renderer
2. Renders some frames (2 frames) on secondary renderer
3. Executes animated primary secondary renderer swap
4. Sets rendering back to primary renderer

• Ensure clean up
• Add animation preference properties

Before this PR	CrossDissolve	Flip
transition-before.mov	transition-crossdissolve.mov	transition-flip.mov

[davidzhao]

lgtm! smooth as 🧈