Add support to link with libssl
This is just the necessary infrastructure for DoT and DoH support, it was split into separate MR as to declutter the DoT merge request (!3532 (merged)) and make it easier to review.
Edited by Ondřej Surý
This is just the necessary infrastructure for DoT and DoH support, it was split into separate MR as to declutter the DoT merge request (!3532 (merged)) and make it easier to review.