Make 'optional' breakpoint functionality. Need to see if is there a better way of doing this, without adding a generic include file in /include/ used by all, and polluting all preprocesor namespace. Actually only makes optional the few lines of code in TR3200 cpu and VComputer that checks if there is a breakpoint or if has stoped the execution by a breakpoint. Ideally should make optional the definitions of breakpoint methods in VComputer, but I can do that without including Config.hpp in VComputer.hpp what will polute preprocesor namespace...