Able to edit the layout in the default stage.

[andy840119]

Inspired from the #1906 also.

Should be better jf able to adjust the arrangement in the default stage.
But it's just optional because the layout will be applied to the other kind of stage.
One ruleset cannot have multiple layouts 😢

Also, it might have issue if using playfield as a part of skin element.

[andy840119]

Unless we can do something like:

• HUD
• HUD("karaoke" only)
• HUD("karaoke-default-layout" only)

guess should be hard to do so due to restriction in the SkinComponentsContainerLookup 🤔