Quietus visual upgrade

Game Addon: 

Quietus visual upgrade

This upgrade was actually put in pre-0.0.5 but a typo was discovered preventing it from working properly.

It should now display a clear visual effect when Quietus (racial talent in the High Wight racial tree) is used.

Since it does not burn arcane resources and cannot be placed at will, Quietus is substantially less powerful than anti-magic, but inflicting silence + the possibility of one cross-tier effect can still be situationally useful.