Added examples of creating gestures with bezier path/points

I've added two new gestures using CMUnistrokeGestureRecognizer (https://github.com/chrismiles/CMUnistrokeGestureRecognizer) to showcase gestures using bezier paths.

These type of things can be seen in the likes of Infinity Blade, where gestures are used heavily for gameplay.

The two I've added show how to add a gesture using the path, through defining the points and building a path up from that. I'm probably going to find the outcome of the two more funny than anyone else will :D