Changes made for Pathfinder 5226 controllers.

The 5226 controller is getting logic to control an external LED light tree that will make it easier for operators to know what pedal to press and/or what the state of the machine is. The controller just needs to know that the machine configuration chosen has that option to use the light tree. To make that happen a new Light Tree Configuration generic parameter has been created. The main goal is to just let the controller know it's enabled and to use a hardcoded setup. Future configurations can be added to have the light tree work in different ways.