Fix Resource Editor not showing comments

Fixes #714

src/AddIns/DisplayBindings/ResourceEditor/Project/Src/Commands/EditCommentCommand.cs

@@ -34,6 +34,7 @@ namespace ResourceEditor.Commands
 				                   selectedItem.Comment);
 			if (newValue != null && newValue != selectedItem.Comment) {
 				selectedItem.Comment = newValue;
+				selectedItem.RichComment = newValue;
 			}
 		}
 	}

src/AddIns/DisplayBindings/ResourceEditor/Project/Src/ViewModels/ResourceItem.cs

@@ -65,6 +65,7 @@ namespace ResourceEditor.ViewModels
 			this.ResourceValue = resourceValue;
 			this.resourceType = GetResourceTypeFromValue(resourceValue);
 			this.Comment = comment;
+			this.RichComment = comment;
 		}
 
 		#region INotifyPropertyChanged implementation