TODO for YG

done but not considered as satisfying and completed :
- better test for Register set + support for
   multiple sets inside the bank (i just tightened
   the tests --> the rest will be done in BIST)
- integrate Riviera  --> more or less done
   (at least it works, but the random package
    suffered a bit)

in the queue :
- finish popcount --> modify rand() too
- finish INC --> redesign Etienne's files + rand
- make BIST ( MISR + vector generator + controller + tests )
- Then : Xbar, scheduler...
