wizard mode enlightenment for "very fast"

wizard mode enlightenment for "very fast"

Fast and Very_fast share the same property index, but from_what()
didn't handle that.  Enlightenment for a Very_fast hero--which
can only happen via worn equipment (speed boots) or timed effect
(potion of speed or spell of haste self)--would be erroneously
described as "very fast innately" for roles who get intrinsic
speed at level 1, or "very fast because of experience" when high
enough level for roles who get intrinsic speed later.