MAKE-ARRAY: handle CHARACTER-SET-TYPE.

CHARACTER-SET-TYPE, i.e., (member #\a #\c) or (eql #\d) wasn't
considered by SB-IMPL::%VECTOR-WIDETAG-AND-N-BITS.

Fixes lp#1392068.
More compact character case tables.

Instead of using vectors with conses use a flat vector twice as large,
which takes 1/3 less space.

Also fixes lp#1392068.
Random genesis cleanup / comment improvement
Add VOP to access CPUID information.
Preliminary parsing of CPUID information.

Including processor name and feature flags.
Check for CPUID availability, better parsing.

Also added processor info parsing and checks against highest parameter levels
(standard and extended).