[Feature Request] SceneReference: Option to disable Check for "In build settings" and serialization of sceneIndex

[TheXRMonk]

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As title says.

Main issue being when scenes are addressables or in a different scene list which was introduced in Unity 6 with the new build profiles. In these cases we will get errors:

The warning that a scene is not in build settings is nice for new unity users, but more experienced ones should be able to disable (in the mybox settings?) this and still use scene references. :)