Prusa Mini Raspberry Pi 4 Side Mount Case

This is a remix of [Malolo's Raspbery Pi 4 case bottom](https://www.thingiverse.com/thing:3723561), made for the Prusa Mini and Mini+. The case will attach to the printer directly behind the LCD screen on the frame, using 2 T-nuts and 2 M3x20 screws. This base is compatible with any of Malolo's case tops.

# Remix Changes
- Added 2 posts that fit M3x20 screws
- Added depth to bottom of base
- Added angled slots from the inside of the case down through the bottom of the base for ventilation
- Added a cutout underneath that fits the foam feet provided by the Mini kit

# Hardware Parts List
- 2 M3x20 screws - on-hand
- 3 zip ties for cable wrap - on-hand
- Foot pad - on-hand
- extra pad provided as part of kit build
- 2 T-Nuts (I ordered directly from Prusa spare parts, not sure of compatibility of other brands) - ~$16
- Because shipping was $15, I actually ordered a bunch of them in case I need in the future, but this price reflects having 2 of them.
- [3/8" or 1/2" ca