Zombicide: Black Plague token organizer

Wait, we need another one of these? Filament is cheap and people (me) can be pretty dang picky. After printing the [Black Plague token holder](/thing:1214965) by mute42 I wanted to improve on the following elements:

* Too loose in the box, and
* Didn't hold as many pieces as it could in the space available

I was spoiled by the excellent [storage for Green Horde](/thing:2832432) by rug84 because it holds all the tokens and additionally the dice, survivor bases, and tracker pegs.

My de