2) complementarily add a "--overallNormal" to replace
per-vert/per-facet normals with an overall. simplifier doesn't work
in certain cases without less complex normals. this gets that done.
3) add env var output with full verbose output so people realize it's
active when the app is run - i see this all the time in training where
people run osgconv, with unintended data transformations due to
osgUtil:;Optimzer, for example"
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