Adding a public member to USkeletalMesh class is now prohibed since it can break asynchronous operations that will be added next to this submit.
#rb danny.couture
#jira UEENT-3936
#rnx
[CL 14812920 by Alexis Matte in ue5-main branch]
Moved functionality from the EditorLevelLibrary into the LevelEditorSubsystem, UnrealEditorSubsystem, EditorActorSubsystem and StaticMeshEditorSubsystem
#jira UE-77334
#rb lauren.barnes, francis.hurteau, brooke.hubert
#fyi chris.gagnon
[CL 13934034 by aditya ravichandran in ue5-main branch]