Following discussion with @bclehmann in the Discord (#1966), let's add some empty actions that get invoked at the start and end of each render which advanced users could add their own code into to wait for an optical lock state to be achieved before rendering and stay locked until after rendering.

This functionality should go in the RenderManager class https://github.com/ScottPlot/ScottPlot/blob/main/src/ScottPlot5/ScottPlot5/Rendering/RenderManager.cs