add a separate display type for ID column

apps/opencs/model/world/columnbase.cpp

@@ -73,6 +73,8 @@ bool CSMWorld::ColumnBase::isId (Display display)
         Display_SoundRes,
         Display_Texture,
         Display_Video,
+
+        Display_Id,
         
         Display_None
     };

apps/opencs/model/world/columnbase.hpp

@@ -103,7 +103,8 @@ namespace CSMWorld
             Display_Colour,
             Display_ScriptLines, // console context
             Display_SoundGeneratorType,
-            Display_School
+            Display_School,
+            Display_Id
         };
 
         int mColumnId;

apps/opencs/model/world/columnimp.hpp

@@ -43,7 +43,7 @@ namespace CSMWorld
     struct StringIdColumn : public Column<ESXRecordT>
     {
         StringIdColumn (bool hidden = false)
-        : Column<ESXRecordT> (Columns::ColumnId_Id, ColumnBase::Display_String,
+        : Column<ESXRecordT> (Columns::ColumnId_Id, ColumnBase::Display_Id,
             hidden ? 0 : ColumnBase::Flag_Table | ColumnBase::Flag_Dialogue)
         {}