Seperation of controllers and actuators

Currently, the controller and the actuator of some subsystems are in the same class which introduce some code complexity.
For example, the circuit breaker is composed of the controller, which is in the cab of the locomotive, and the actuator which is located near the pantograph.
In multiple units, the controller can control several actuators (one in each locomotive).

For some multiple units, like the TGV, this is to create a more realistic power supply. For example, when using 25000 VAC, only the pantograph at the back locomotive is up and only the circuit breaker at the back locomotive is closed. The front locomotive is supplied by a 25000 VAC cable on the roof of the train. In that case, the front locomotive circuit breaker is open.

This principle will be applied if possible to the electric locomotive selectors (see https://blueprints.launchpad.net/or/+spec/electric-locomotive-selectors)

Another example: the brake controller of the front locomotive may activate also the brake application (reduction of pressure in the brake pipe) at a remote controlled locomotive to reduce brake application delay.
Here, the brake controller which is on the cab will be seperated from the brake control panel which is in a technical compartment.
The brake controller will be able to control several brake control panel.