Rewrote vtkCoreGraphicsGPUInfoList to not use deprecated API

vtkCoreGraphicsGPUInfoList was based on Apple's QA1168 docs,
which were rather dated and used API recently deprecated.
QA1168 was recently updated, and so I've changed
vtkCoreGraphicsGPUInfoList per its current recommendations.

This has the added benefit of using only the OpenGL framework,
and so I've removed everything that was checking for IOKit
and ApplicationServices, since they are no longer needed by VTK
at all.

Change-Id: I79b032b843b331f40d79d0f2072923253c464e05
Adding in arctan2 through numpy.

Change-Id: Ib4ba8e2d28d2352a1510852efa3afac006e9a412
Merge topic 'add_arctan2' into master

c6cea540 Adding in arctan2 through numpy.
Merge topic 'deprecated-iokit' into master

2eb00f97 Rewrote vtkCoreGraphicsGPUInfoList to not use deprecated API