selectTrails
Collects the visual trails of the powers belonging to one of the two rings, in power order.
Powers whose effect is null (custom Lua powers and a handful of premades) simply contribute no item, exactly as null-effect powers always did.
Return
The trail strings, one per power that carries one
Parameters
eliteEntity
Elite whose powers get scanned
majorPowers
True for the major power ring, false for the minor power ring