Added Electrodragons m4808 Dev-Borard

[pcfreak1201]

I bought some of the boards and they worked out of the box with MegaCoreX. They sent me login for their wiki, so I've got the schematic. With that I've generated the pinout as in the review on their shop. Hopefully some one take this to migrate from 328p Nano to the "m4808 Nano" :-)

By the way: gereat work with all of your cores! Love them - and normally never use the original Arduino Core ...