teensy-core-4.1

Teensy 4.1 core updated for C++20

David Hedin 5c064702ba Add define guards to allow compiler flags to change product name/serial number		pirms 8 gadiem
..
core_id.h	Initial commit, version 1.17-rc1	pirms 11 gadiem
usb.c	Fix RawHID on Teensy 2.0	pirms 10 gadiem
usb_api.cpp	Fix RawHID on Teensy 2.0	pirms 10 gadiem
usb_api.h	Initial commit, version 1.17-rc1	pirms 11 gadiem
usb_private.h	Add define guards to allow compiler flags to change product name/serial number	pirms 8 gadiem