Add debug.h

Added a general debug.h that will enable/disable debugging
messages to standard output via ::std::cout

Signed-off-by: Raffaele Aquilone <aquiloneraf@gmail.com>
Merge branch 'buildsys_start' into buildsys
Fixed debug.h

Now the debug.h file works properly, be it enabled or disabled

Signed-off-by: Raffaele Aquilone <aquiloneraf@gmail.com>