Improve performance of ShapeDrawer methods

[KadinTucker]

Currently, ShapeDrawer methods of drawing polygons, bezier curves, and the base methods of drawing lines run very slowly and consume a lot of gpu performance.
One way to fix this may be to cache the shapes drawn somehow-I would suggest as surfaces-and instead of having drawPoint be the only functionality that needs to be defined in ShapeDrawers have a draw surface defined as well. For Surfaces this is obviously blit. For the Renderer, it can create textures and cache them on its own, perhaps.
Regardless, this is an issue which should be addressed at some point.