Log Message:
googletest: updated to 1.13.0

v1.13.0

C++ Language Support

GoogleTest now requires at least C++14 and follows Google's Foundational C++ \ 
Support Policy. See this table for a list of currently supported versions \ 
compilers, platforms, and build tools.

Notable Changes

Floating point prints full precision by default to aid in debugging (9c33214)
GTEST_FAIL_AT now terminates the test (like ASSERT_*), rather than failing and \ 
continuing (like EXPECT_*) (6f14952)
Added testing::SrcDir(), which returns the configured directory for test data \ 
files (912db74)