Swaps the front and back buffers of the current GraphicsContext, presenting the rendered scene to the user.
This method rebinds P:OpenTK.Platform.Android.AndroidGameView.Renderbuffer to the OpenGL context's RenderbufferOes property, then invokes M:OpenTK.Graphics.IGraphicsContext.SwapBuffers.
/// The instance has had
///
/// invoked on it.
///
