- Add 3 DEF files to export functions from Windows DLLs
- Add gettimeofday to crypto/crypto.def (*1)
- Remove gai_strerrorA from tls/tls.def (*1)
- Fix CMakeLists.txt to use DEF files as PRIVATE
- Change DLL import library file name since it duplicates with static library
- Ignore compiler warning C4267, and Edit CMAKE_C_FLAGS not to overwrite it (*1)
- Add USE_SHARED option to build openssl.exe with shared libraries (*1)
(*1) recommended by @mcnameej
