win: Add new API win_name_get (EO and legacy)

I see no reason to have a set and no get.

@feature

src/lib/elementary/efl_ui_win.c

@@ -4237,6 +4237,12 @@ _efl_ui_win_name_set(Eo *obj, Efl_Ui_Win_Data *sd, const char *name)
    sd->name = eina_stringshare_add(name);
 }
 
+EOLIAN static const char *
+_efl_ui_win_name_get(Eo *obj EINA_UNUSED, Efl_Ui_Win_Data *sd)
+{
+   return sd->name;
+}
+
 EOLIAN static void
 _efl_ui_win_noblank_set(Eo *obj EINA_UNUSED, Efl_Ui_Win_Data *pd, Eina_Bool noblank)
 {

src/lib/elementary/efl_ui_win.eo

@@ -567,6 +567,7 @@ class Efl.Ui.Win (Elm.Widget, Elm.Interface.Atspi.Window,
             [[Can only be used at creation time, within \@ref eo_add.]]
             legacy: null;
          }
+         get {}
          values {
             name: string @nullable;
          }