Refactor OvaleFrame so the code to update one icon is a separate function.
Refactor OvaleFrame so the code to update one icon is a separate function.

The OnUpdate script handler now calls OvaleBestAction to compute the best
action, then calls the UpdateActionIcon method to update the icons.

eXhausted/Ovale,ultijlam/ovale,eXhausted/Ovale,Xeltor/ovale,eXhausted/Ovale,ultijlam/ovale,ultijlam/ovale