suzerain: draft (disabled) assertions

These should be the final form of {rho, u, v, p}_t but they
are currently disabled as they're broken.  Debugging remains.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@42692 0bd85f0b-c151-43b9-a1e9-27231104551f