Add enabled flag to PhysicsDebugConfig to globally disable debug rendering at runtime

[LeshaInc]

This allows easily turning debug renderer on and off by changing enabled field of PhysicsDebugConfig

Also it matches similar approach by GizmoConfig from bevy and DebugRenderContext from rapier.

[Jondolf]

I wonder if this option should also disable debug rendering for entities with the DebugRender component. It might be useful to be able to disable all debug rendering without having to remove the components.

[LeshaInc]

I wonder if this option should also disable debug rendering for entities with the DebugRender component. It might be useful to be able to disable all debug rendering without having to remove the components.

Doesn't it already disable all systems inside the plugin?

[Jondolf]

I wonder if this option should also disable debug rendering for entities with the DebugRender component. It might be useful to be able to disable all debug rendering without having to remove the components.

Doesn't it already disable all systems inside the plugin?

Oh my bad, it uses a run condition so it doesn't run the systems at all. For some reason I thought it still ran it for entities with DebugRender and skipped the rest, not sure why. But you're right👍

[Jondolf]

Looks good, I can merge this now