Parametric Glasses Case

This is a parametric case for glasses. I got tired of spending $$$ on a new pair of glasses and getting a cheap case that breaks when you look at it funny, so I decided to create this.

For the price of a decent case that will survive being shoved in a backpack, I can buy a spool of nylon or PETG filament and print a couple of them.

Features:
* Named parameter sets for angled vs. flat profile, narrow vs. wedge-shaped,
* Flat sides vs indented for people w/ different-sized hands.
* Select from hinged vs. press-fit closure or stitching holes for a zipper
* Optional loops to strap onto a backpack or purse.
* Optional inner liner(s).
* Optional cutout in the bottom interior for a Tile(tm) BTLE tracker device so you don't lose your glasses in the seatback pocket of a 777 or cab or....
* Business card holder slot for contact info for when you do leave it behind somewhere anyways...

GETTING STARTED:
Call the case() module with one of these parameter sets lik