Classic support — bring Single-Button Fishing up to par with Retail

Single-Button Fishing is built for Retail today and doesn't really work on WoW Classic. This is the effort to bring it fully up to par so Classic anglers get the same one-button experience. What Classic support covers: - Detecting Classic automatically and adapting SBF's behavior to it. - A built-in gear/loadout manager for Classic (Classic doesn't have Retail's equipment sets, so SBF needs its own). - Handling the fishing pole in the correct slot for Classic. - Reliable keybinding and casting so the button fires every time. - Proper loot handling for Classic's older looting behavior. Vote this up if you fish on Classic and want the full SBF experience there. Once it's picked up, each of the pieces above becomes its own tracked task.