Raspberry Pi 3 Model B Streamdeck MK.2 Case Remix

This is a remix of [jambadger's Raspberry Pi 3 Model B Streamdeck MK.2 Case](https://www.thingiverse.com/thing:5977623). I combined the "Front" and "Base" parts into one and redesigned the front to be flat. I also modified the "Cover" to clip into place vs requiring a screw. The clips also help hold the Top on more securely.

I also created some "pins" to hold the RPi in place rather than needing screws, but screws can still be used, if desired.

I also added a couple options for lids with honeycomb and a variation of the Medium honeycomb and the original lid to have a 30mm fan that should be a tight fit to hold in place without screws. The fan holder came from the [Raspberry Pi 4 case](https://www.thingiverse.com/thing:3723481) created by John_Sinclair.

Edit: Added a slot to the base to accommodate a PoE HAT. I left the base without PoE slot in case one doesn't want that option.