Earle F. Philhower, III
1fd0b0404d
Fixes #167 For Serial when selecting TinyUSB. Can't include in the core because Arduino IDE will not link in libraries called from the core. Instead, add the header to all the standard libraries in the hope it will still catch some user cases where they use these libraries. See https://github.com/earlephilhower/arduino-pico/issues/167#issuecomment-848622174