teensy-core-4.1

Teensy 4.1 core updated for C++20

PaulStoffregen f53d326cf6 E2END actually is eeprom size, fixes #120		8 lat temu
teensy	Add SerialUSB definition (Teensy 2.0)	9 lat temu
teensy3	E2END actually is eeprom size, fixes #120	8 lat temu
usb_disk	Initial commit, version 1.17-rc1	11 lat temu
usb_flightsim	usb_flightsim changes for XPlaneRefs with names >58 chars	9 lat temu
usb_hid	Initial commit, version 1.17-rc1	11 lat temu
usb_midi	Fix Teensy 2.0 USB MIDI compile error on Arduino 1.6.0	10 lat temu
usb_rawhid	Fix RawHID on Teensy 2.0	9 lat temu
usb_serial	Add availableForWrite() on Teensy 2.0	9 lat temu
usb_serial_hid	Initial commit, version 1.17-rc1	11 lat temu
.gitignore	Add more rules to .gitignore	10 lat temu
README.md	Update README.md	9 lat temu
keywords.txt	Update keywords.txt	9 lat temu

Teensy 2.0, 3.x, LC core libraries for Arduino.

The latest stable version of Teensy’s core library is always available in the Teensyduino installer, at this page: