Inspired by https://github.com/kennetek/gridfinity-rebuilt-openscad, this version is more limited but seems to perform a bit better in stl output time.
Supports text labels on the bin tabs, or one label across all bin tabs.
Currently only supports bin tabs that are full-width.
It's hard to measure fonts in OpenSCAD. Thanks to Alexander Pruss who made this much easier with https://www.thingiverse.com/thing:3004457.