Change orientation of bars

[fsobolev]

Possible values:

• Bottom -> Top (default)
• Top -> Bottom
• Left -> Right
• Right -> Left

This setting will not affect circle modes. But it will affect mirror (#15), so the mirror itself will only have on and off state and its behavior will be controlled by this setting.

[gregorni]

Will this affect Spine mode? I think if we do this, the automatic orientation switching for Spine mode should be removed.

[fsobolev]

I think if we do this, the automatic orientation switching for Spine mode should be removed.

Yes, it makes sense.