selection char and line break count

src/SharpIDE.Application/Features/Editor/EditorCaretPositionService.cs

@@ -6,4 +6,5 @@
 public class EditorCaretPositionService
 {
 	public (int, int) CaretPosition { get; set; } = (1, 1);
+	public (int characters, int lineBreaks)? SelectionInfo { get; set; }
 }