Customisable hinged box

Remix of source scad file to allow different box sizes. Basic length, width and depth changes are now easier.

Remixed from https://www.thingiverse.com/thing:2969508

Uploaded new scad file with lip on bottomhalf and text on top half. Renamed things.

V1.0 - First release after remix
V1.1 - Added lip on bottom half
V1.2 - Added text on lid and code tidy up
V1.3 - Bug fix: bottom was 2* wall_thickness.
V1.4 - Openscad customizer (View->Customizer (unhide))
V1.4.1 - Variable latch width
V1.4.2 - Fix for thingiverse customiser not supporting true/false

Not tried different wall thicknesses, but should work - the hinge setting will be the bit that fails so examine closely if you change the wall thickness.

Added basic functions, modules, for the different parts so 'may' be easier to modify in the future.

Option to add a lip on the bottom half. Makes for a really tight fit when lid closed.

Option to put some engraved text on the top.

Hinge wo