Add a way for the application to get OpenSSL configuration data
OpenSSL_version(OPENSSL_DIR) gives you a nicely formatted string for
display, but if all you really want is the directory itself, you were
forced to parsed the string.
This introduces a new function to get diverse configuration data from
the library, OPENSSL_info(). This works the same way as
OpenSSL_version(), but has its own series of types, currently
including: