* libmisc/cpuuse/cpuusagereport.c, libmisc/cpuuse/cpuusagereset.c,
score/src/timespecdivide.c: Fix various math and reporting bugs. Now
the time appears to be reported correctly and add up to what is
expected.
* libmisc/Makefile.am, libmisc/cpuuse/cpuusagereport.c,
libmisc/cpuuse/cpuusagereset.c: Fix bug where cpu usage calculation
was always using uptime not time since last cpu usage reset when
using nanoseconds granularity.
* libmisc/cpuuse/cpuusagedata.c: New file.