Parametric case for Raspberry Pi + PiCap LED

This is a modification of the original case to accomodate a [PiCap LED control hat](https://www.pixelcontroller.com/store/index.php?id_product=47&controller=product) for the Raspberry Pi.

Main modifications include:
* Increasing the overall height to accomodate the hat
* Adding openings for the LED control ports, DMX and power
* Ventilation slots (not shown in photo)

When printing, do separate the connected meshes and make sure both are dropped to the print bed (I'll do this eventually and upload the changes).

Assembly requires 4x #4 3/4" screws. Use these instead of the provided bolts with the PiCap and screw them into the bottom plate.

You must detach the screw post connectors for power and LEDs before fitting the top case. It is a snug fit. Reattach the connectors once the case is closed up.