New package: gtest

New package: gtest

Google's framework for writing C++ tests on a variety of platforms (Linux,
Mac OS X, Windows, Cygwin, Windows CE, and Symbian). Based on the xUnit
architecture. Supports automatic test discovery, a rich set of assertions,
user-defined assertions, death tests, fatal and non-fatal failures, value-
and type-parameterized tests, various options for running the tests, and XML
test report generation.

Gtest also allows to easily build testsuites for C programs.

This package allows running testsuites on the target which might be
advantgeous in certain cases.

http://code.google.com/p/googletest/

[Peter: Tweak Config.in, use GTEST_VERSION in _SOURCE]
Signed-off-by: Stephan Hoffmann <sho@relinux.de>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>