This directory contains external projects, taken from the following locations:
googletest: https://github.com/google/googletest/commit/eaf9a3fd77869cf95befb87455a2e2a2e85044ff
 - changed: In googletest/cmake/internal_utils.cmake, add cmake_policy(SET CMP0069 NEW) to silence a warning
cryptopp: https://github.com/weidai11/cryptopp/tree/CRYPTOPP_8_2_0
 - changed: added CMakeLists.txt and cryptopp-config.cmake from https://github.com/noloader/cryptopp-cmake/tree/CRYPTOPP_8_2_0
 - changed: commented out line including winapifamily.h in CMakeLists.txt
 - changed: In CMakeLists.txt, rename BUILD_TESTING to CRYPTOPP_BUILD_TESTING so it doesn't clash with our BUILD_TESTING
 - changed: In CmakeLists.txt, add cmake_policy(SET CMP0069 NEW) to silence a warning
 - changed: Fix Android compilation using patch file https://github.com/termux/termux-root-packages/files/4664745/config.h.patch.txt from https://github.com/cryfs/cryfs/issues/345