suzerain: change default --status_{nt,dt}

For apps/perfect/driver.cpp the default restart_dt duration
was eight times per flow through, the statistics 4 times per
restart, and the status 4 times per statistics.  That means
a status message 128 times per flow through.

I increased this to status 16 times per statistics for a
status message 512 time per flow through.

To coincide with this increase, I removed the default --status_nt=100 line
appearing within the jobscripts.  Folks wanting status more often can
explicitly provide STATUS=--status_nt=100 at job submission time.

Lastly, I added a TODO to apps/reacting/driver.cpp suggesting that
it be updated to provide default restart, statistics, and status
behavior when run in a boundary layer configuration.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44243 0bd85f0b-c151-43b9-a1e9-27231104551f