Add alternative timing method component

[RedMage08]

Similar to original livesplit, there should be a component to add to layouts that shows the currently not selected time, ie when the main timer is set to game time, this component should say Real Time and show a timer for RTA and vice versa with Real time -> Game time.

Also maybe have it selectable and include options such as RTA without pauses etc?

[CryZe]

So the biggest problem here is that this will prevent us from ever introducing extra timing methods. So how to handle that situation would need to be clarified before we could introduce this.