More faster and simply events rendering

Before:
`spa:wire(wf:f("loadCanvas('~s');",[ImagePanel])),`
After:
`wf:wire(["loadCanvas('", ImagePanel, "');"]),`

`iolist_to_binary/1` faster than `io_lib:format/2` 20 times

src/render/wf_render_actions.erl

@@ -8,6 +8,7 @@ render_action(Action) ->
     Res = Module:render_action(Action),
     case Res of
          Res when is_tuple(Res) -> render_action(Res);
+         Bin when is_binary(Bin) -> Bin;
          Str when is_list(Str) -> Str;
          _ -> [] end.