Fixed shifting of excellent option number in chat command.

The numbers start at 1, so the first option should not cause a shift.

src/GameLogic/PlugIns/ChatCommands/ItemChatCommandPlugIn.cs

@@ -109,7 +109,7 @@ private static void AddExcellentOptions(TemporaryItem item, ItemChatCommandArgs
             var excellentOptions = item.Definition.PossibleItemOptions
                 .SelectMany(o => o.PossibleOptions)
                 .Where(o => o.OptionType == ItemOptionTypes.Excellent)
-                .Where(o => ((1 << o.Number) & arguments.ExcellentNumber) > default(byte))
+                .Where(o => ((1 << (o.Number - 1)) & arguments.ExcellentNumber) > default(byte))
                 .ToList();
 
             ushort appliedOptions = default;