(CFACT-134) Add OSX info to os structured fact.

Adding OSX build, product, and version to the os structured fact and
hide the macosx_* facts from output by default.
(CFACT-134) Add system_profiler structured fact.

Add system_profiler structured fact and remove the existing system
profiler related facts from the output by default.
(CFACT-134) Add dmi structured fact and cleanup DMI facts.

Adding a dmi structured fact that represents DMI data (TODO: come up
with a better name than "dmi"?).

Also hidding the existing DMI facts from default command line output.