OpenSCAD Configurable Box with Partitions

This is a newer version of my other storage box found at https://www.thingiverse.com/thing:7231296 which adds the option to configure 'partitions'. Where some example STL files are provided, it is intended that using the OpenSCAD Customizer you can configure the box and (optionally) partitions to meet your specific needs. If you have a need that others might also find useful, let me know and I will make extensions (if necessary) generate the appropriate STL file. Note: There are a lot of uses for partitions aside from creating ammo boxes. Ammo boxes just have defined sizes that are useful for many. There is an STL file for holding 4x6 photos with internal partitions. I will take on ideas for other examples where a common partition size or arrangement might be useful to many. Just let me know. Expect more STL files to be added here over time. Other common uses would be nuts and bolts, screws, electronics parts, slot cars, coins, etc. The partitions options include: 0. No internal par