Turn-tracker for Cairn game overview

[fjallnari]

The ideal solution would provide UI to keep track of combat turns, similar to the Initiative component.
Another useful feature would be an interface for torch-keeping and general time passage on a more macro scale.

The main problem is space as the Cairn game overview is pretty full already - one solution would be to put monsters into a separate game view (similar to 5E) and re-use & modify the 5E Initiative component. Another solution is to add a new Cairn specific turn-tracking component on top of NPCs.