Update CI/CD (release/verify) for 2019 on direction pages

This MR refactors the CI/CD sections on the direction page to point to two new subpages; the pages are similar at the moment, reflecting the single strategy/PM/engineering in place for this area, but it provides a starting point to start diverging and I'm trying to do this in an iterative way instead of waiting until everything is sorted out. They do point to different wishlists, using the correct new devops:x labels, and contain different plans for the year.

cc @JobV