chore: Replace IsSceneObject with InScenePlaced bool#4000

EmandM wants to merge 5 commits into

develop-2.0.0Unity-Technologies/com.unity.netcode.gameobjects:develop-2.0.0from

chore/replace-issceneobject-with-insceneplacedUnity-Technologies/com.unity.netcode.gameobjects:chore/replace-issceneobject-with-insceneplacedCopy head branch name to clipboard