Show SST internal configuration when verbose

[pdbj]

It's often useful to document the internal SST configuration. This patch logs Config to the default simulator output, when verbose.

Patch Show SST configuration when verbose

[pdbj]

Rebased Show SST configuration when verbose

[jleidel]

@feldergast, I can prep an issue-fix branch for a forthcoming PR if you approve.

[feldergast]

This isn't the way I would fix this issue. If there are multiple ways to print (Output object versus stdout, for example), I've been trying to consolidate things into a toString() function and then using that in the various print functions. Also, [[fallthrough]] is c++17, so isn't allowed in the core.

[pdbj]

Yes, I wasn't wild about the duplication. On the other hand my new function prints things with a little more formatting (column aligned), so some reconciling needs to occur.

[feldergast]

I have some changes to the config class on a branch I'm working on. I'll take the new code and tweak it into a toString() function. I'll use that in print() versions to take FILE* and Output. There's probably not a great reason to have a version that only goes to stdout.