Add ability for SceneToPrefab to output to a scene instead of a prefab
- output prefab identical to normal S2P
- after runs PreProcess on the output prefab's scene so it doesn't need to be ran during startup
- create a seperate scene for the client vs server version of the "prefab"
- can view all 3 versions of the monument / prefab at once (editor, server, client)
- applies label 'PrefabScene' in output scene
- way faster than normal S2P