HeishaMon big enclosure

This is an enclosure for the HeishaMon communication PCB from TheHogNL.
The PCB can be bought at: [Tindie in Netherlands](https://www.tindie.com/products/thehognl/heishamon-communication-pcb)

There is already an enclosure for this PCB but i thought it can be improved to my need:
- fixation of the PCB in the enclosure by fasteners
- The lid is fixed by fasteners
- space for cable management is provided, all cables go downside to reduce dust ingress.
- cable entries are closed by default and can be opened with a side cutter on demand
- holes for fixing the box to e.g. a wall.
- the push buttons are accessible without opening the enclosure
- printable without overhangs

fasteners are needed (6x):
- length: 9.6 mm or a little shorter
- outside diameter: 3.0 mm
- inside diameter ~1.9 mm (not critical)

BOM to print:
- bottom 1x
- lid 1x
- pin 2x
- clamp 2x

I borrowed some nail polish from my kids to color the buttons :-)