[SD-App] Please add monopoldesign's M5Core2_Amiga

[tobozo]

https://github.com/monopoldesign/M5Core2_Amiga

[tobozo]

repo_fork:tobozo

library requirements:

https://github.com/ivanseidel/LinkedList
https://github.com/earlephilhower/ESP8266SAM
https://github.com/earlephilhower/ESP8266Audio