Telescope modular tray

This is a 3 sided modular telescope tray. The idea is that you design a module to fit on the post so the center is a triangular shape to slide different modules onto.

Modules so far:
- VESA mount for a Intel NUC.
- Big Battery mount for a [Tracer 12V 22Ah](https://www.tracerpower.com/12v-22ah-lithium-polymer-battery-pack.html)
- A bin to hold stuff (Flashlight, cables, etc)
- A bigger bin
- A 3 lens holder (1.25in lens)

I added a base that will prevent it from spinning.

I also add