devel/pijul: Update to 0.11.0

This also adds support for OpenSSL 1.1.1.

Announcement: https://pijul.org/posts/2018-11-20-pijul-0.11/
PR: 233371, 233302
Submitted by: Jens Grassel <jan0sch@mykolab.com> (based on)
Approved by: cs (maintainer timeout, 2 weeks)