[PATCH] SSL: Add ENGINE_init() calls before using engines.

[Пичулин Дмитрий Николаевич]

> In my opinion it would be better to have nginx working with engines in both scenarios.
> And is not a problem to call ENGINE_init() from multiple places, since the API takes care of this case.

I'll check these statements in your next patch, but for now it seems an odd functionality to me, because we have openssl config and even nginx ssl_engine directive for that.