suzerain: switch helper to template

Will want to use a variety of things for the logger in upcoming commits.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44384 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #3079 remove logging-driven L2 shortcuts

Removing unused, futzy functionality in an attempt to understand #3079.
This stuff is ugly and a correctness and maintenance headache
and the overhead small for production runs.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44385 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #3079 remove logging-driven bulk shortcuts

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44386 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #3079 remove logging-driven extrema shortcuts

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44387 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #3079 remove logging-driven bc shortcuts

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44388 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #3079 remove logging-driven qoi shortcuts

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44389 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: ostringstream cleanups

The code's been a mess here because I've been trying to manage
very cheap resources.  Stop doing that.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44390 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #3079 improve logging of BL qoi

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44391 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #3079 improve channel qoi logging

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44392 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: correct logging snafu

These wouldn't be output if rank zero didn't house the zero-zero modes.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44393 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: note 00 mode logging restriction

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44394 0bd85f0b-c151-43b9-a1e9-27231104551f