Redesign the circuit to ESP32-Only

[Xasin]

Whheee, finally got some time to work on this!

Let's see what still needs to be done...

• [x] Muzzle WS2812
• [x] Four body WS2812
• [x] Lay out important PCB elements
• [x] Route I/O accordingly

[Xasin]

Definitely closed as of Revision 3.2