Find out one line solution for get custom control container + create the custom control (in one statement)

This look quire general
```gdscript
var code_edit = DebugInfo.get_custom_control(id, func (): return CodeEdit.new())
```

If control needs setting:
```gdscript
var code_edit = DebugInfo.get_custom_control(id, func (): 
  var code_edit = CodeEdit.new()
  code_edit.gutters_draw_line_numbers = true
  return code_edit
)
```
