Make SSL_library_init() a wrapper of OPENSSL_init_ssl()

Make SSL_library_init() a wrapper of OPENSSL_init_ssl()

This way it doesn't do nonsensical work for all those who cargo culted an
init sequence. There's no point in having SSL_library_init() as a cheaper
version of OPENSSL_init_ssl(): once you do crypto, you'll init crypto...

Also move the now trivial implementation to ssl_init.c which has a good
license.

ok jsing