Add testing for the webassembly example

[Artis3D]

F3D version 3.3.0
The example doesn't work because of following:
1.

Module.engineInstance
        .getOptions()
        .set_as_string("scene.up_direction", "+Z");

and

Module.engineInstance
        .getOptions()
        .set_as_string("scene.up_direction", "+Y");

There is no function set_as_string, should be changed to setAsString
2.

Module.engineInstance
        .getOptions()
        .set_color("render.grid.color", 0.25, 0.27, 0.33);

and

Module.engineInstance
        .getOptions()
        .set_color("render.grid.color", 0.67, 0.69, 0.75);

There is no function set_color, I changed it to setAsString("render.grid.color", "#....

Also, is it possible to add progressbar to example?

[Meakk]

Thanks for reporting. You're right. I'll take a look.

[Meakk]

It has already been fixed last month: #2532
I'll keep this issue opened though because the example is not tested at the moment.