suzerain: #2583 add in-situ vorticity

Adds samples into the usual infrastructure
Collects them within apps/perfect
Updates manual.gold to ignore the new fields

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44610 0bd85f0b-c151-43b9-a1e9-27231104551f