Jean-François Nguyen a413025fcb Update SPR interface and split consistency check.
* Use bitmasks to describe SPR accesses at the field granularity.

* Use separate checks for each SPR, instead of covering them all at
  once. Users may run them in the same batch, and know which SPR passes
  or fails its check.
..
spr Update SPR interface and split consistency check.
all.py Update SPR interface and split consistency check.
cr.py
gpr.py
ia_fwd.py
unique.py