Data files are now and should continue to be gleaned from pypowervm,
which should be relied upon to keep them current (with respect to the
REST API), clean, and consolidated.
A recent pypowervm change set has added all the data files needed by
this project, so they are removed from here.
The test utilities used to load these files were also refactored (moved
to a different package). This change set accomodates that refactor.
Change-Id: Ic289c0fda3fe8271465f4c66ab99238d880931b3
f05ed1f942