Parametric board game box corner support

Have a heavy board game collection? Do your boxen need a little more support? Accidentally mess up shortening your copy of *Lords of Waterdeep*? (The included model is for *Lords of Waterdeep*.) These little braces can help!

#### Instructions for Use
1. Measure the *outside* of the box, top to bottom
2. Measure the thiccness of the box
3. Enter those two values into the `*.scad` file and adjust the other parameters as you want (I highly recommend the excellent [**OpenSCAD Playground**](https://ochafik.com/openscad2/#H4sIAAAAAAAACrVWbW/iOBD+K5HvC13h5o2QQHXqla5Wt9J275ZbLR+ArRzHhqQhRrbTBjj++40D9C1c1e3eibfJ+Jlnxo9txhu0JJIsFOpvEKE6vWV/Ej1HfWTXfqZlSnEsiEzwDB7BrDAVsmASq3K5FFKfKkoS1EZKlJIyIBpvgPNtHFQUmhUaQgHzO0tnc239anXD0+BsUoDr6zyltGBKgdernXuCxwPumWXb1thyTr3A6h9+PGt6j/7EipmeGw5njzUIFz4d5xHsgxAmvXsAucdAX8VyIAllANSyZGeNgbo0k2vP4vUNrm25fU5yxY5Q3U/8MBO/P0Gu7U9QG6KN6RnTNeYEGYJJkYJwsiD5fWzLepAQ754eRHoHcpyAu6HeyZkhm5d53jqxNmBrWsasBTU8ka7diGx6rOmOTU+0lqRQOdE1kdM272f1AnYHbSQ0i/AD6bYvVt+M/7f5/EfVNxMen