devel/google{test,mock}: update to 1.10.0

• Drop static library
• Drop gtest-config and gmock-config
• Drop GTEST_LIB_CHECK autoconf macro
• Drop gmock_doctory.py as it's too old
• Expose tests via option

Changes: https://github.com/google/googletest/compare/release-1.8.1...release-1.10.0
Reported by: GitHub (watch releases)
PR: 239654
Differential Revision: https://reviews.freebsd.org/D19430