suzerain: #2736 SAMPLES_COMPONENTS impl

This lifts the form from SUZERAIN_SAMPLES into
what's necessary for perfect_{mean,summary}.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@43649 0bd85f0b-c151-43b9-a1e9-27231104551f