Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Lts/Plugins/BuildingViewer/share/exccommands.h

@@ -0,0 +1,9 @@
+#pragma once
+
+
+
+namespace BuildingViewer
+{
+enum AssetTypes {IndoorCamera = 200, IndoorCameraWithSpeaker, AnnouncementUnit, EffectGenerationUnit};
+enum BgViewerEvents {WidgetClosed, WidgetMaximized, WidgetMinimized, WidgetGotFocus, RoomNameClicked};
+}