Offset Vacuum Base

This issue prompted a review of geometry handling in /graphics/ggeoview/geometry_review

Live created PmtInBox features the offset bottom very clearly

ggv-;ggv-pmt-test --tracer

G4DAE export with cfg4-dpib loaded back in via geocache DOES NOT SHOW THE OFFSET ?:

ggv --dpib --tracer

Plotting mesh vertices together with analytic shapes.

Standard geocache exhibits the issue:

Using a recent G4DAE(g4d-) export doesnt have the issue, here DPIB_ALL: