Added onDone() empty method to Effect. This adds the ability to listen to an effect being done with it's execution.
Added onDone() empty method to Effect. This adds the ability to listen to an effect being done with it's execution.

HolagLP/EffectLib,Slikey/EffectLib,stormtrooper28/EffectLib,HolagLP/EffectLib,Slikey/EffectLib,stormtrooper28/EffectLib