set moving gadgets in pointer site to have moving state

prevent spurious resizes during layout

src/bin/e_gadget.c

@@ -726,6 +726,7 @@ _gadget_act_move(E_Object *obj, const char *params EINA_UNUSED, E_Binding_Event_
    ZGS_GET(pointer_site);
    _gadget_util_add(zgs, zgc->type, zgc->id);
    z = eina_list_data_get(zgs->gadgets);
+   z->moving = 1;
    evas_object_geometry_get(g, NULL, NULL, &w, &h);
    evas_object_resize(pointer_site, w, h);
    eina_stringshare_refplace(&z->style.name, zgc->style.name);