Level Instance Pivot Picker:

- Preview picker location when changing it from the details panel
- Use Actor Picker which isn't restricted to the Level Instance actors

#jira UE-174434
#rb richard.malo
#preflight 63cfe5fb976daa618c996b60

[CL 23831919 by patrick enfedaque in ue5-main branch]

Engine/Source/Editor/LevelInstanceEditor/LevelInstanceEditor.Build.cs

@@ -31,7 +31,8 @@ public class LevelInstanceEditor : ModuleRules
 				"ClassViewer",
 				"MessageLog",
 				"EditorWidgets",
-				"DeveloperSettings"
+				"DeveloperSettings",
+				"SceneOutliner"
 			}
 		);