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Includes a demo scene, some of the military-themed macros, and then selections
of entities of varying sizes

Mostly just avoiding things like the position of the entity holder over and over.
I should probably switch it so that it just reads, then writes. TODO!

Each entity now has an info object, a views list, and a sizes list.
This will allow for more complex bio/description text

If a character had a bottom offset for one view but none for another,
the offset was not getting cleared properly when switching

The default displayed unit was cm^2, but it was m^2 internally -
so it would wind up shrinking if you went to m^2. This needs to be
fixed more generally, though - it should be able to start at any unit
and still work properly.

units