Teensy40 shield LEDs pins 1-12

This project is intended to provide a mounting spot for a Teensy 4.0 and then send the signals pins to a MOSFET for each of the signal pins 1-12.  While also giving a plug to bring in 12V power and 3 RJ-45 connectors to allow the power to be distributed. The assumption is that the total load will be no more than 3A and the MOSFETs will be 100% on at 3.3V