suzerain: #2736 stub take_samples

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@43641 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #2736 take_samples impl

Lifted from quantities.cpp's sample_quantities

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@43642 0bd85f0b-c151-43b9-a1e9-27231104551f