[Piglit] [Patch RFC] Piglit Segmentation Handler

[Ken Phillis Jr]

I updated the Code for piglit to include windows. I also added the
"standard Copyright" to the new source files... The two new files are
as follows:

tests/util/piglit-util-sighandler.c
Automatic Backtrace Handling using posix compliant signals. Please
note that register dumps are probably the least portable portion of
the code, and will need changes on a per platform basis

tests/util/piglit-util-win32.c
Automatic Backtrace Handling on windows. Please note that windows in
general has a much more limited compliance to than most other posix
platforms and thus requires it's own separate file.


NOTE: By default if the platform does not have a handler there will be
no system changes. This however, Cannot be kept true for windows. The
changes so far make the software incompatible with versions of windows
made before Windows XP and Windows Server 2003. However, This only
applies if someone builds piglit using Visual Studio 2005 and up.

Also as a reminder, the Commits are housed at the following git repository:
http://github.com/kphillisjr/piglit/commits/segmentation_handler